Gt40 heads dyno

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gt40 heads dyno This 1967 Ford GT40 Mk IV - chassis no. I also did not want to go with a set of aluminum heads because I wanted to keep the car as stock looking as possible, so it would be a good sleeper I still think with some more tuning on the dyno I can coax 300 RWHP out of the motor. dyno tested at 290 hp (flywheel) and 235 Rear wheel hp. Supporter. xls: Spreadsheet: 600 KB: May 4 2017 2:18 AM: Holley_Intake_Dyno_and_Track_Data. HP was 257 at 3500 and peaked at 410 HP at 5500. To handle the Even with big block cars the 1965 Le Mans was a failure for the Ford team. - GT40 heads (non "P") with OEM rocker arms and valve springs. My 351w is a 1974 with stock heads and pistons. #7 · 1 mo ago. It was born out of motorsport’s most infamous grudge. Aug 04, 2012 · the gt40 heads i have now did pretty well on the dyno run. Matter of fact, it’s rate to even get up to 36 total without detonation on 91 octane pump gas with CR ~10:1 and alloy heads. gt40 heads vs Pro comp. Ford GT40P cylinder heads have 4 vertical bars and some are stamped "GT40P". May 14, 2015 · Video: Dyno Testing The Old-Fashioned Way: The GT40 Story By Gary Perkinson May 14, 2015 When you consider the ridiculous amount of computing power that’s packed into any run-of-the-mill smartphone these days, early corporate films like this one from Ford (prosaically entitled “Visa to Le Mans”) become that much more interesting—and Nov 23, 2016 · They also installed GT-40-type cast-iron cylinder heads, the tubular “tuned” manifold, tubular stainless-steel headers, larger intake (1. I guess I can dyno, see where the #s land, and run the next race. $900 for these vs Dec 31, 2020 · Bigdogs ported GT40 flow numbers LIFT IN EXH. Financing. Follow me on Instagram. Adjustable front and rear brake bias. 1967 Ford GT40 MK IVChassis no. when i thought about it my only reply i could think of was i guess the pro comp because of the weight loss off the nose. Our entry level 347 stroker Ford performance engines boast an honest 400 horsepower and 390 torque and run on premium pump gas. Dec 27, 2012 · Here's my dyno results for my 58 cc AFR165 heads vs 64 cc GT40X heads of my previous combo (see attached dyno pull comparisons). my motor is stock and could use better flowin heads in my price range. 4-Speed Manual Transaxle. 152. The dooe's would probably requires new seats for unleaded. Now Ford Performance has Jan 12, 2004 · The GT40 heads production was discontinued in the USA years ago and GT40 heads are replaced by GT40P & GT40X heads GT40 heads were only fitted to EB GT & EL GT in Australia. Aug 20, 2021 · The whole project started off as a parts grab for a block and heads for future customers of Lykins Motorsports. 0 engine that had a recent rebuild sometime in the past with keith black pistons, otherwise stock. With a 185cc intake runner size, the heads fall into the larger side of the 302-based street engine offerings while still being large enough to provide an upgrade in a 351 Windsor engine. in street conditions, where the airflow is poor. With the front end nearly finished the Petrol filler Tubes are built up and are ready to be fitted. 2 is a 1979 Fairmont wagon with E cam,GT40P heads,Stealth intake,Holley 600 carb,headers,T5 and 3:55 gears. Welcome, Guest. Cylinder Head, PowerPort® Cleveland 195, CNC Street Ported, Assy, 62cc Chamber, 1. My shortblock has high compression pistons (10. Looking at this from 2 points of view, how much lift can stock (originally 96 Explorer) GT40 heads and rockers take without machine work, and then, exactly what machine work Jan 06, 2021 · Upgraded Lunati camshaft and GT40 cylinder heads on Ford Explorer Mustang 5. Another friend with a similar combo, but some bottem end tricks (hyper pistons, and such) made right under 300 rwhp, with a stock cam as well. Sep 03, 2021 · There is a possibility that the engine could have been damaged during one of the dyno runs. These heads have stock spark plug angles, location and will work in Early Mustangs with all common exhaust systems. This would be a d2 head. i got this a couple of weeks ago and honestly didnt know how to reply. Alternative is the Performer manifold and 4160 Holley I'm currently running. The Lightning guys are the kings of making power with a 351 based motor. 0:1 and were topped off with a set of Crane 1. 594 @ 94. They are available for popular V8 engines. 1994-95 Cobra – F4ZZ-6049-A (updated under-valve pocket area) 1996-97 Explorer Post some convincing dyno sheets, dyno vids of GT40 Iron headed comboms putting out some nice #'s (300RWHP+) you must have all accessories hooked up. Location. This will be a daily car. and i was going to go with a exhaust biased duration cam like an anderson n-21, or maybe a crower cam. The heads were milled a couple thousand but the block deck was stock. All we did was swap the heads, which took less than an hour. Cooling 6. Flow tested 12 cfm less than the 165's @ . Reviews. Fuel system is going to have to be upgraded for the HCI anyway, at least the injectors will so its really not that much more. ZF 5-speed manual transmission. 2RWKW (APS dyno) Switchable Shift Kit, K&N panel filter, Lukey straight thru mufflers, momo gear and steer, DBA slotted rotors/Bendix ultimate pads (front), Pioneer MP3 head Jun 17, 2020 · The original Ford GT40, the inspiration for the modern Ford GT supercar, was engineered to win the 24 Hours of Le Mans, which it did four times between 1966 and 1969. 0l. Aug 23, 2003 · ok i know i can buy the gt40 heads for 1100-1200 buks ive read heaps of posts and seen a few quoting gt40 manifolds are these any good and what are the worth and also how do the gt40 gear compare in performance and dollars to other aftermarket gear like trickflow or others Oct 28, 2021 · Hell, the damned GT40 was powered by a 427 and it leveled the Ferraris in one of the great showdowns in auto racing history, right? In this case we return to the familiar dyno cell of Survival Motorsports as they have another of their finest crafted FE engines on the stand. 1 to rebuild the originals would have meant installing hardened valve sets and a complete rebuild. Stock flow on cylinder #5 was Dec 08, 2012 · I have access to either a set of GT40 or Windsor Jr heads locally for $300. it's always like upgrade springs in the head, untouched lower gt40 intake and an alphabet cam lol. Jan 28, 2021 · With GT40 heads, the 750 Double Pumper worked best; with the 11R heads, the 1,000 HP carb was the winner. The GT40P heads originated on the 94 Mustangs and were fitted to the later Explorer 4 wheel drives. Jun 29, 2006 · In all fairness I have installed a dozen or so GT 40 X 305 aluminum heads and personally know quite a few guys with Fords 345hp crate engines using the GT 40 X heads without problems. Feb 01, 2009 · All testing was performed on 91-octane pump gas. Several versions of the original GT40 were built, powered by a variety of V8 engines. R #12. ·. 30 on radials , y303 aluminum on my 351 lightning (really woke things up over 3k rpm), and Dart Sr,s on both the 306 race engine (525rwhp) and the 408 in ffr5020 580hp(flywheel). T-5, 302 CI, stock shortblock. "Actually, we began our inquest with extensive rework of the existing 271 hp heads. The GT40P heads were a standard on all AU Series I & II (Not Sure about Series III) XR8's & The T series cars + and they will requier different extractors. Oct 29, 2015 · I used GT40P heads on my V8 Ranger. http://www. This 347 Ford Crate Engine will give you the reliability you want for your street cruiser while still having the power you need. 0L HO V8 engine produced for the Mustang GT in 1995 to an engine dyno, and it made way more power than expected. 13 and no head problems yet to date. i wat thinkin of just gettin gt40s a do them over and i dont really want p specific headers, so if anyone has experience with both that work be cool. freshly rebuilt gt40 3 bar heads with 1. Mar 04, 2005 · Randy-. Located just outside Louisville, KY, the $200 engine was a complete 1966 352 out of a Ford F100. The front Suspension Pick ups are fabricated and place into the front Jig structure. 1994 Ford Mustang Svt Cobra 5. Current CNC Head Porting Programs. Ford 289 & 302 Cylinder Heads. 55 gears ,12. USA Model: Superformance GT-40 Car_Number: 2197 Odometer_Miles: 8 Year_Car_Built: 2007 Jan 05, 2002 · They dont emphasize that a great deal in the article. This intake has been welded in the corners to allow further porting. Coming from working on Gen 1 SBC's, these numbers just shock me. gt40 iron heads, 1. 1 inch plenum spacer. Location: Southeast Kentucky. For this reason, a specific intake rocker arm was used that had it's pushrod cup not centered but was located 0. 84 intake and 1. pdf: PDF Document: 3. 050 comp cam with a stock block with stock untouched pistons. Sep 09, 2005 · They are suppose to outflow GT40 heads by atleast 30 percent according to PowerHeads sales person. Aug 20, 2018 · RCR GT 40 Gulf Livery 347 Eight Stack injection. . Feb 23, 2008 · I used mild ported GT40 Iron heads on a blown gtconvert with a stock cam and 3. Oct 17, 2021 · The GT40 heads were originally designed for the Mustang Cobra (the performance version of the Mustang) and were cast iron. In the rush to prepare the newer GT40Xs, small mistakes were made Sep 27, 2021 · m-6049-x306 gt40 heads, aluminium - Ford Modifications Website The engine pictured here was built for a SuperFormance GT40. EFI 55. They are a better head. 1972 351w. This will keep you from dropping your overall static compression ratio and losing power. Chuck Roberson had a valve guide issue with one but the rest are still in use. It now out flows a GT-40 & Cobra intake according to flow numbers provided by Richard Holdener's 2000 Dyno Pulls book. Ford 351 Windsor Cylinder Heads. i got 242HP/261TQ at the wheels out of it considering it's a automatic. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5,500 rpm range. All testing was performed on IMM's DTS engine dynamometer, and the No hate on aluminum heads, actually envy. 030. When I had my 89GT Mustang, I put the GT40 heads, Cobra Intake and a mild cam in it. They make 250+ HP. The first has 2 vertical bars on the ends, the second has none. 427ci OHV Side-Oiler V8 Engine. If you have 4 lines its a GT40P head if you have 3 lines its a GT40 head. Dec 06, 2011 · GT40p heads are usually worth about 30hp more than a stock E7 head. Should drive really well and be easy to tune while putting an SN95 solidly in the 12's. 7 liter (289 cubic inch) based on that of the Ford Mustang. My jaw dropped when the tech said 324 hp @ 5100 rpm and 357 trq @ 4300 rpm! mods are as follows. The valve size and chamber size were the same on both sets. Quote from: Deanmx64 on January 15, 2010, 08:34:56 pm. Fire suppression system. One benefit gt40P head will have over other 80's-90's model heads, including the gt40 head, is that it has a smaller combustion chamber much like the original 289 heads. The 347 only made 25 or so more horses then the 302, but a but-load of low-end tq. Auction Lot S144, Monterey, CA 2017. 6-point roll cage. While the Ford had set the lap record, the race was an unmitigated disaster. Other plans include the weiand stealth intake, holly 650 cfm Sep 06, 2017 · Working on my 331 build, was planning on running AFR 165' with my cam (. I'm not dogging out Ford's offering because on a bone stock engine they will Apr 09, 2017 · The GT-40 heads continued within the Ford Explorer despite the Mustangs receiving modular engines. Many companies make P specific headers and there are also headers out there that fit both styles of heads. Dec 14, 2003 · The GT40/Cobra/Explorer intakes flow VERY close to each other. The iron GT-40 heads were standard equippment on the 1993 Cobra Mustang with the same 5. Apr 09, 2017 · The GT-40 heads continued within the Ford Explorer despite the Mustangs receiving modular engines. Be Ford GT40 Cylinder Heads. I set the initial timing at idle (w/ vacuum advance disconnected and vacuum line plugged) to 12 degrees with engine at normal operating temp. Sep 12, 2007 · With factory stock gt40 heads off a 95 cobra, TFS1 cam, ported stock lower, pullies, 14*, and 24lb inj. Now Ford Performance has Dyno Power Run Results CAR SPECS: Mk I GT40: an RCR Replica of the 1968 & 1969 Lemans winning racecar. 0L 302 V-8 with nitrous makes 500 horsepower. If I were in the market, then gt40 heads. 050. Heads were milled from 64cc down to 62. since they were only Small Block Ford Cylinder Head Porting e-mail us: shadydell2005@aol. There isn't a lot of info out there on these heads. Thats with AFR heads and a little smaller cam than the vette. 0 stang gt convertible,66 mustang coupe, HEMI ram. People dump a ton of money into modifying the old 289 heads, or even 351w heads, and stock May 08, 2005 · Same, but add ported GT40 iron heads with 1. Jun 04, 2012 · The mustang dyno is saying 475 right now, a stock c6 z06 puts out 440 on the same dyno. 25" dual exhaust. #8. Should I be going the simpler way with the carb vs FI? Thank you in advance for your thoughts. 54 exhaust valves. 565, . GT40's from a local u pull n pay ($97) weiand x-celerator. 6 scorpion roller rockers, good springs , cobra upper/lower intake, trick flow stage1 cam,bbk shorty headers,xpipe,flowmasters ,underdrive pulleys, electric fan, k&N filter May 17, 2021 · GT40 cylinder heads were a more free-flowing high-performance cylinder head that outperformed the factory E7 heads that were found on most 5. Stock air flow on this head tops out at 190 cfm intake and 128 cfm exhaust. ford e303 cam. i have ported with 3 angle valve job on my gt40 original heads and right now im running with an e303 cam but im thinking a single pattern cam is like what ive read around outdated. They had the smaller "P" valves, and the smaller "P" combustion chambers, but the regular GT40 spark plug angles. You can do that with the stock heads and the right bolt ons etc. In addition to those, there were also two others: F0JE-AA and F3JE-CA. 02 This is one of our Ford 351W turn key packages running on our break-in stand. When “ Undercover Ported “, the GT-40 head will flow 202 to Aug 05, 2021 · A 1967 Ford GT40 Mark IV converted to an open cockpit design for Can-Am testing to be auctioned by Bonhams. 94 intakes and 1. -OEM 351W. May 14, 2015 · Video: Dyno Testing The Old-Fashioned Way: The GT40 Story By Gary Perkinson May 14, 2015 When you consider the ridiculous amount of computing power that’s packed into any run-of-the-mill smartphone these days, early corporate films like this one from Ford (prosaically entitled “Visa to Le Mans”) become that much more interesting—and I just wanted to show that GT40 iron heads are not that bad of heads and can make some serious power, I only gained 30RWHP after switching to TFS heads with 2lbs of more boost. with a C&L so they would work. : 210 HP, 277 Torque. 6 Proform Roller Rockers Trick Flow Stage 1 Cam ARP Head bolts Do I need to replace any other parts on the GT40P heads ? Any other parts that needs to be replaced, PLEASE!! enlighten me. When Brent pulled the valve covers off he noticed the engine looked really good. Dave and his team have amassed a huge amount of experience and expertise and are now creating some of the best performing cylinder head and cam packages for both domestic and import vehicles, be it for street/strip use or full Jun 28, 2002 · The first gen Lightning had a full roller EFI 351w with iron GT40 heads. Chrysler Imperial $ 26,300 USD. The dyno recorded a peak horsepower reading of 489 hp, but the air Dec 06, 2011 · GT40p heads are usually worth about 30hp more than a stock E7 head. 600" lift. 10 Posts. There was also an upgraded suspension and vented disc brakes at The origins of the Ford GT40 and the victory at Le Mans in 1966. If you do sell the GT40's I would consider going to an Aluminum set for weight savings. Mar 19, 2002 · Vehicle: 1972 2 door 302 maverick, 1986 5. Dallas. 0 intake. If your looking at your engine from the front of your car. Post some convincing dyno sheets, dyno vids of GT40 Iron headed comboms putting out some nice #'s (300RWHP+) you must have all accessories hooked up. One of the first changes made for the 1966 racing season was the establishment of the Le Mans Committee, which was comprised of the heads of a number of Ford divisions involved, including the Engine and Foundry, General Parts, and also expanded the role of the Dearborn Motorsports Jun 17, 2020 · The original Ford GT40, the inspiration for the modern Ford GT supercar, was engineered to win the 24 Hours of Le Mans, which it did four times between 1966 and 1969. The early heads are clearly marked "GT40" and have three raised bars in the casting that looks like "III" on the end of the head. The GT40 Mk 1 used a 4. AFR's 185cc SBF Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. Jan 01, 2021 · Location: KY. 302 crate, E303 cam, GT40 cast heads, Holley Street Avenger 570cfm, Weiand Stealth intake, Hooker Comp headers, Mallory dual point distributor, Tremec T5-Z, etc. Although we are primarily interested in Performance Cylinder Head Modifications, we will look into other mods also. at the wheels if all the parts are matched well, and exhibit excellent street manners. Ford racing "X" heads are designed to use either GT-40 or aftermarket performance intake manifolds, M9439A50 intake gasket, and AGSF-32C spark plugs. Part Number: TFS-51616203-C00 . Swapping on the CNC-ported With the gt40 intake and 93 gt40 heads I gained about 50 hp . But my iron gt40 headed hr 306 would make your jaw drop when you see the dyno sheet the entire combo has less than $800 into it (port work, and all other work done by me along with getting the heads from a junkyard) with a . I just wanted to show that GT40 iron heads are not that bad of heads and can make some serious power, I only gained 30RWHP after switching to TFS heads with 2lbs of more boost. With the gt40 intake and 93 gt40 heads I gained about 50 hp . Anderson Ford Motor Sport did a dyno of all 3 intake on the same mule two years ago and they all made within 1-2 HP of each other through the whole rpm band that stopped at 6,600 rpm. Ford GT40 Cylinder Heads. 7:1 compression, comp Xtreme roller 512/512 114 lobe separation which will give good vacuum signal. 485bhp at 6,500rpm. 565/. 75@142 95 Cobra R #75-SOLD 06 F250 13 BMW AH3 17 GT350 #5556 GOD'S NOT DEAD Sep 03, 2021 · There is a possibility that the engine could have been damaged during one of the dyno runs. Yes, for aluminum heads, they tell you to use Fel-Pro 1250, but I&rsquo;m here to tell you that you are looking for trouble if you use it. Jan 01, 2021 · 1 is a 1988 Ranger with TF stage 1 cam home ported E7 heads,Edelbrock performer FI intake,BBK TB,small headers,T5 and 3:73 gears. That is about 292HP with a 18% drivetrain loss through the AOD. I came across a possible deal today, rebuilt gt40 heads, ported & polished, 5 angle valve job, upgraded springs, viton seals etc. Mar 23, 2004 · Joined Jul 12, 2002. Custom dyno tune mandatory with either. Following months of careful negotiation, Ford was ready to do a deal with Enzo The GT-40x head should be compared to the AFR165. Currently I'm swapping the heads, should be done this weekend with everything. and bolted them onto a 347 shortblock, then dropped the hammer. 02 Apr 04, 2010 · I'm building a 302 roller cam block with GT40 heads with the ports cleaned up and am looking at CompCams for cam choices. 5 cc to raise the compression ratio a bit although the official compression ratio is 9. pdf Oct 29, 2015 · I used GT40P heads on my V8 Ranger. 4 with TFS 170 heads) and I plan on slapping on a kenne bell in the future. Cranks & Rods 41. 40mph. Application. 221. 6. 7 liter engine and the T-44 gearbox, they perfected the GT40 and the new Ford team now headed by John Wyer. 95 cobra upper and lower intake. It was sort of a hybrid GT40/GT40P head. Gains are almost always across the board when done right because the intake is flowing more efficiently at all times: The ported GT40 lowers can also be used with Box uppers to mate with blower applications and make some pretty decent power. GT40 Crossover exhaust system . Engine specs: - 351 roller block bored . Jul 03, 2018 · The efficiency of long-tube headers over shorty headers is demonstrated on the dyno with 16 more HP and 16 lb-ft of torque on a mild 351W Ford small-block. 535 lift custom ground cam and a dual plane intake it put down 338whp and 325lbft so you might wanna be paying closer attention Sep 25, 2010 · Re: Question about GT40 heads on the average they make only about 25rwhp, but the GT40p is a better working head because of the tighter combution chambers about 58cc. Owning a Superformance GT-40 is like owning an original. Dec 08, 2012 · I have access to either a set of GT40 or Windsor Jr heads locally for $300. since they were only Jan 01, 2021 · 347 and you must use E303 with GT40 heads. We started with a new Ford Racing BOSS 302 block and added a Scat forged steel crankshaft with a set of Scat forged steel H-beam connecting rods, then fitted SRP aluminum pistons that were modified for use with the Gurney-Weslake cylinder heads. Fully ported with the Trick Flow Spring kit, OE style flat top pistons with 1605 compression height and the XE264XR-14 cam with 512 lift and 1. 566 lift 218/224 duration @. Aug 23, 2018. Upgraded springs is a must, and the gt40p's are a vast improvement over the e7 heads of the later 5. I loved those heads! The Z304 is a 20-degree aluminum head that was sold through Ford Racing. Gurney-Weslake Small Block -- The Ford V-8 Engine Workshop. The draw back is I cannot use the heads on my 363, but the intake is usable. Aug 24, 2021 · The GT40P heads have the same intake valve as the other GT40 cylinder heads, but the smaller 1. October 01, 2021, 05:06:13 am Tuning on a Dyno for the track, is like swim Aug 04, 2012 · the gt40 heads i have now did pretty well on the dyno run. The reason being is that as most of us, im on a tight budget. Apr 15, 2017 · Giving new life to GT40X heads. the Gt40 cobra head has a gigger exhaust valve but a 64 to 65cc chamber I know the 393 will be flow-restricted with my cam and head choice, but I plan to swap them for better parts in 1-2 years. Feb 10, 2013 · 302 GT40 Dyno Results. This combo with Richard Holdener testing has dyno results of 396hp on a Deamon 650 carb. Other plans include the weiand stealth intake, holly 650 cfm Sep 26, 2007 · Re: trick flow stage 1, 1. 650 holley double pumper. 1083 car driven by Wilson Fittipaldi. -Dart Iron Eagle 200. People dump a ton of money into modifying the old 289 heads, or even 351w heads, and stock Oct 13, 2009 · Had a diablo chip and dyno tune done on my 1994 GT. Unbelievable. Jan 05, 2002 · They dont emphasize that a great deal in the article. 54-inch), high-flow ports, high-rate capacity fuel pump, and injectors, revised combustion chambers, a redesigned air filter for improved airflow and a true dual exhaust system. After development with the 4. 4-Wheel Independent Suspension. J-9, which touts an unusual history compared to its brethren - will be offered at Bonhams' upcoming Quail Lodge sale in Carmel, California during Monterey Car Week. 1994-95 Cobra – F4ZZ-6049-A (updated under-valve pocket area) 1996-97 Explorer Jan 06, 2021 · Upgraded Lunati camshaft and GT40 cylinder heads on Ford Explorer Mustang 5. 2l) gen 1 SBC and I hope to get close to 500 fly HP. 0 Fox Body Mustangs. I've seen a iron GT40 top end motor with a e303 pull 299HP on a dyno without tuning or port work. I got 240RWHP according to the dyno. Also, aluminum. I bought the heads professional rebuilt for $375 which was less than $500-700 quoted to rebuild my stock 289 heads. *One of just 10 examples manufactured and used in period. Equipped with the as-cast 190 cc heads, the 408 produced 463 hp at 5,600 rpm, and 480 lb-ft of torque at 4,300 rpm. The three bar heads also have a "GT" cast in one corner next to the valve cover rail. -RHS iron head 200, 215. any ideas?? im Oct 17, 2021 · The GT40 heads were originally designed for the Mustang Cobra (the performance version of the Mustang) and were cast iron. _____ The origins of the Ford GT40 and the victory at Le Mans in 1966. It claims it modified the cabin to allow drivers up to 6'4" to fit in its replicas. 6 ratio or use part number M-6564-A50 for a 1. iron head. the Gt40 cobra head has a gigger exhaust valve but a 64 to 65cc chamber May 19, 2014 · The engine has iron GT40 heads (not the GT40P's), an MSD 6 box and a Ford DuraSpark distributor and an Edelbrock 1406 600cfm carb. I had to dig, but this is what I found from two different Muscle Mustang and Fast Ford articles: Ford Racing GT-40x Cylinder Heads: Peak HP: 390 hp @ 5,400 rpm Peak Torque: 416 lb-ft @ 4,400 rpm Average HP: 315 hp Average TQ: 386 The GT40 is a purpose-built road-race car, with a mid-engined semi-monococque chassis that measures forty inches high at the windshield, giving the car its name. 58cc gave me approx. Jul 12, 2012 · Parts I have are 66 289 block, stock crank & rods, rebuild GT40 heads (been decked, guessing 63CC chambers), Edelbrock Performer 289 manifold, Edelbrock 600 CFM carb. 4-wheel disc brakes. 500. of water. O. 82 Carpi RS, 306, T5, 8. So I've got the motor and heads already for my maverick project. In the Ford performance circles the GT40X cylinder head is viewed as a mediocre entry level head. car made 322/329 SAE thats after 3 hours of idling/midrange hits to tune the idle and Dec 12, 2000 · While we've seen engine dyno tests performed with GT-40P heads replacing factory E7TE castings and resulting in a boost of more than 25 hp, we have reluctantly set our horsepower gain goal at 25 Jan 13, 2007 · One of the mags did a test last year, where they dyno'd a bone stock Mustang 5. Included in these articles were how the heads performed on the dyno, valve sizes, spring rates, compression ratios, combustion chamber sizes, and installation info. I'm currently working on a 383 (6. It developed a stainless-steel monocoque chassis to underpin its builds, redesigned the suspension system, and added air conditioning. These new cars called Mark II’s were ready for the 1966 Le Mans in which fight were entered by three different private teams. Basically they're just warmed over '93 Cobra engines at that point. GT-40 heads previously sold by Ford Motorsports SVO with 1. Nov 27, 2012 · GT40 Upper and Lower Intake manifold 70MM Throttle Body GT40P Heads Replace stock springs with Trick Flow upgraded springs 1. Dec 31, 2014 · 96 Explorer on right for GT40 heads (internal EGR) 98 Explorer on left for GT40P heads (external EGR) re GT40 Heads Just keep an eye on how much the machining will cost. These "X-Head" heads use GT-40 performance intake manifolds, and feature high temperature exhaust valve seats with bronze guides. Jan 12, 2013 · I took my car to Hpp performance yesterday and made some amazing numbers with the gt40 setup and would just like to recommend to some of you guys before ya blow big bucks on aftermarket heads. 150" back toward the original valve location location since the pushrod remained at the The cooling fans at the dyno are primarily to cool the engine and NOT used to super cool the I/C, which will give an incorrect “actual” H. Looking at this from 2 points of view, how much lift can stock (originally 96 Explorer) GT40 heads and rockers take without machine work, and then, exactly what machine work Nov 30, 2004 · Ims ure with some decent GT-40 heads I could see 300 rwhp My dads stock cammed, stock bottem end LX with unported Ps made 282 rwhp. in the stock shortblock with a 5spd car. P. a set of “UnderCover Ported” ‘492 heads. 0 V8, but there are two variations: early and late. i have no experience with the pro comp heads myself. This 1 of 1 Roush Special Edition Tribute GT40 was sold on TV at Barrett-Jackson Auction > CLICK HERE < Oct 28, 2021 · Hell, the damned GT40 was powered by a 427 and it leveled the Ferraris in one of the great showdowns in auto racing history, right? In this case we return to the familiar dyno cell of Survival Motorsports as they have another of their finest crafted FE engines on the stand. Gt40p heads, gt40 intake, crane 1. After port work the heads were retested and flowed 266cfm (580hp) but the exhaust flowed 78% of the intake also at . F. Engine 682. The Ranger weighs about 2700* and wagon about 3150*. Trickflow, AFR, Edebrock,and Dart all offer superior castings to the GT40X from Ford Performance. Ford Windsor 302 EFI Tickford V8 engine. 0 to 1 compression, MSD ignition with A6L box, roller rockers,equal lenght headers, intake and carb are up to you, but this motor will run on 87 octane and produce somewhere in the 300 to 340hp range. Like other stock castings, there is plenty of room for improvement with this head. Aug 31, 2008 · A set of used gt40 heads can be had for $200 or so, and I have connections that can port them for a reasonable price. 06" exhaust valves at . Only show this user. Dual Holley 4-Barrel Carburetors. Engine Blocks 38. E-STREET ™ CYLINDER HEADS. pdf Jul 19, 2008 · Mid 1997 is when they started using the P heads. 8 4. The Z304 FMS head is a better head to stand up against the AFR185. The Ford aftermarket is in full swing. Any advantage to one over the other? Both sets are in similar condition and will need to be reconditioned. Please login or register. The car is still very streetable. 0l, and higher performance than stock gt40 (non-P) heads. Generally, iron GT40 head combos are good for low 13s at the track. Thank you. -----88 Saleen #564 88 GT 331 NOVI2000 88 Coupe TURBO 9. 391. 846-inch GT40 intake valve, which is the same intake valve as is used on the 351 Windsor. A good aluminum head (AFR 165 or TFS TW 170) is worth close to 90hp more than a E7 head on a similarly prepaired 5. On the Dyno. Weslake GT40 Gel 002. Porsche G50 transaxle. The look, the feel and the performance. pdf: PDF Document: 1 MB: May 4 2017 2:18 AM: Hall Effect Ignitions. . 54 exhaust), E303 hyd cam, around 9. Feb 04, 2020 · AFR’s Enforcer small-block Ford cylinder heads make a great budget-friendly alternative to the class-leading Renegade lineup of cylinder heads. torque @ 4400rpm (dyno’d) coupled with a 5 speed RBT ZF transaxle. i already left the guy a msg and asked for the casting number hopefully it hasn't sold yet. 0 engine. Feb 23, 2012 · 668. May 19, 2014 · The engine has iron GT40 heads (not the GT40P's), an MSD 6 box and a Ford DuraSpark distributor and an Edelbrock 1406 600cfm carb. To the right behind the alternator on the head is some raised lines. Est. On the set of dyno tests to the right, we took a 355 with a set of stock ‘492 double hump head vs. several years back I called Keith Craft and bought a pair of his CNC Brodix heads for my 354 (big 347). 14. 96 to early 97 had the standard GT40 heads. The GT-40 (P) cylinder head is popular for classes that must run a stock Ford production head. The Gelscoe Chassis Plate is welded to the Filler Tube Apr 28, 2020 · Vanguard Motor Sales is excited to offer the opportunity to own this beautiful 1965 Ford GT40 by Superformance with a mere 872 miles. These heads have larger intake & exhaust valves compared to E7TE's. Nov 06, 2004 · Here is the dyno graph. A set of knock-off 15-inch wheels sit on all During the practice laps, the 427 set the lap record at 3:33, almost five seconds faster than the Ferraris! Ken Miles received his wish as he and Bruce McLaren teamed up to drive one of the GT40X cars. he told me he had 3 people intersted in the heads. AFR 165 heads, dual plane manifold. 150". Btw: When the engine was modeled totally stock down to the 2v and single exhaust, the head swap only added 33 fwhp. One of the first changes made for the 1966 racing season was the establishment of the Le Mans Committee, which was comprised of the heads of a number of Ford divisions involved, including the Engine and Foundry, General Parts, and also expanded the role of the Dearborn Motorsports During the practice laps, the 427 set the lap record at 3:33, almost five seconds faster than the Ferraris! Ken Miles received his wish as he and Bruce McLaren teamed up to drive one of the GT40X cars. It's an 86 roller 5. 600 234 182 No too bad for an old head if you ask me. « Reply #3 on: January 15, 2010, 08:36:13 pm ». There's no denying that this one-owner Ford GT40 will turn some heads with its vintage race car-inspired exterior aesthetic, and the paint is in excellent condition. Aluminum dry sump Ford SVO 302 CI engine. Cylinder Heads 59. AFR165 = 305 RWHP / 345 RWTQ (SAE corrected) GT40X = 259 RWHP / 303 RWTQ(SAE corrected) Along with the heads the changes between the combos included: TMOSS ported lower, O/R xpipe instead of catted x-pipe, smog & EGR deleted Dec 12, 2000 · However, when we dyno'd the car before installing the GT-40P heads, the fan was on the car. 10's. No point paying more to make old heads work, if you could get a good aluminum head for the same money that would flow much better. Oct 30, 2013 · Or just do a simple $600 GT40 iron head and explorer intake swap and then supercharge it for 425whp all day long. Feb 13, 2008 · I have some gt40p heads that I was going to enlarge the head bolt holes so they would fit a 351w. Both the intake valve and the intake rocker stud are moved over 0. GT40 MK I P2294 – Gulf livery per #1075 ’69 LeMans winner. I ended selling those heads for $400 back in the day and put some TFS as cast heads. For 289 and 302 block applications, you must use head bolt kit M-6065-D289 or the bolt and gasket kit M-6051-D50 to ensure proper installation. Oct 17, 2014 · If you are using a GT40, GT40p or an aluminum aftermarket head that I listed earlier, the gasket you will want to use is Ford Racing M-9439-G50. Owner: Richard Woerz Occupation: Engineer Location: Coeur d'Alene, ID. just my . best stock ford ever made. 1999 AU XR8. Dyno-tested at 630 HP. REPORT: HP 254. running this heads for 2 years plus on the race track on a stock bottom end ,292 comp. Jan 01, 2021 · Posts: 2683. - Eagle stroker kit with cast crank, I beam rods, and hypereutectic pistons. i would guess a dynamite set of hand ported heads would still come in below that. 7. CAV still makes the GT in 2021. I've got gt40p heads for it I'll be running, and can't afford better Jan 12, 2013 · I took my car to Hpp performance yesterday and made some amazing numbers with the gt40 setup and would just like to recommend to some of you guys before ya blow big bucks on aftermarket heads. 150" back toward the original valve location location since the pushrod remained at the Dec 07, 2007 · The early 96 Exporer had a unique GT40 type head. Most Ford motorsport ctrate motors were fitted with these heads and the GT40 tubular manifold. After everything was said and tuned my car dyno'd at 301Hp and 321lbs or torque! Mods are; e303 cam Jan 07, 2013 · The GT40 heads are readily available from Explorer or Mountaineers in the wrecking yards. Jan 30, 2007 · Both are GT40 castings. Sep 18, 2003 · The heads are the Roush 5304 Cast Iron items. 7 ratio full roller rockers. roller rockers exhaust only, 1. Discussion Starter · #1 · Mar 23, 2004. best et 11. May 04, 2017 · GT40_Style_Intake_Dyno_and_Track_Data. But with all the restrictions on Oct 13, 2009 · Had a diablo chip and dyno tune done on my 1994 GT. Yes, 40 degrees is substantially higher than I have ever seen used on a Windsor engine. Jul 16, 2021 · Cape Advanced Vehicles was founded in Cape Town, South Africa, in 1999 to make Ford GT40 replicas. The Z304 is a 20-degree aluminum head that was sold through Ford Racing. My concerns are for intake match and valve interference. 6 rockers. 7 ratio. "At the peak of our testing with the 271 hp cast iron heads on a 325-inch block, we were pulling as much as 448 hp on gasoline. 6,557 Posts. I wouldn't let the special header issue deter you from getting P heads. 0Mod : BBK CAI Magnaflow Catbackcenterforce clutch3. Dyno Results for 351C w/2V heads It has a pretty flat torque curve with 380+ ft-lb from 3500 to 5600 rpm, with a peak of 410 ft-lb at 5000 rpm. How To Identify Your GT40 Heads There are two variants of these cylinder heads, one being the GT40 already mentioned and the other being the Ford GT40P heads. The cooling fans at the dyno are primarily to cool the engine and NOT used to super cool the I/C, which will give an incorrect “actual” H. 4-Wheel Disc Brakes. Small Block Ford. 94 valves 315 fwhp. 7 roller rockers too. 500 232 177. Thanks guys. Feb 14, 2016 · My dyno experience would put you in the 250-260 range with the GT40 intake (and valve springs if needed), and a bigger cam would see another 15 or so HP and a lot more usable RPM. Diesel Engines 7. Nov 12, 2018 · About the Author: Dave Localio is a long-time friend of ours and the owner/operator of Headgames Motorworks, a cylinder head specialist founded in New Jersey in 2001. Basically they are the highest performing stock ford production head available for the 5. There was plenty of piston to valve clearance. Oct 08, 2021 · The lines are located on the front of the head. Built to replicate the chassis no. I loved those heads! I know the 393 will be flow-restricted with my cam and head choice, but I plan to swap them for better parts in 1-2 years. Engine Buildup 164. Aug 17, 2017 · Here's the real story behind the Le Mans-winning Ford GT40. The 1996-97 models got the normal GT-40 heads while the 1998-2000 models got the revised versions, or the GT-40P. com or call (814) 237-4990 Ported Stock Lower Intake. GT40 cylinder heads have 3 vertical bars stamped on the side of the head as well as the word "GT". Not sure of the C/R or cam specs but appears to have a pretty decent cam. This budget friendly head is perfect for your 302 to 363 Cubic Inch operating below 6000 RPM. Apr 21, 2020 · The engineers replaced the cylinder heads with higher flowing GT40 pieces. s new graphite head gaskets. Its the torque these heads make also, not just the power! Apr 15, 2017 · Giving new life to GT40X heads. -OEM 289 06AE and hi-po 289. @ . doc: Microsoft Word Document: 42 KB: May 4 2017 2:18 AM: Helpful Calculations. The dyno recorded a peak horsepower reading of 489 hp, but the air Jul 17, 2012 · The gt40p head is considered the best OEM 302 head made. This part number is perfect to upgrade from your old 302. Dyno Testing 138. I have personaly ran a . this is with the stock HO cam too. Designed for bolt-down rocker arms part number M-6564-B351 for a 1. « on: February 28, 2010, 09:01:48 pm ». GT40's originally came equipped on the following V8 engine vehicles: Jan 13, 2008 · how much better are the "p" heads then the norm gt40 and wat year was the p heads in the explorers. cam ,2800# mustang. This GT40 MK I features LH drive, medium body width, and is equipped with a stroked 426 cid Windsor, producing 518 hp @ 5500 rpm, 607 ft. Ford Cylinder Heads. As you ponder a crate motor, here's my results (dyno run on 5/13/04 at Kieth Craft, Plano). 73 gear15 degree timingtire : toyo proxes 4 275/40zr17 Apr 29, 2011 · I wanted to add BBK headers to the GT40 heads, but I'm not sure I'll need them. Although without the increase in compression the AFR heads would make more power then the GT40X heads no doubt. _____ This Ford 347 Stroker Crate Engine is ideal for serious street performance. Aug 23, 2003 · ok i know i can buy the gt40 heads for 1100-1200 buks ive read heaps of posts and seen a few quoting gt40 manifolds are these any good and what are the worth and also how do the gt40 gear compare in performance and dollars to other aftermarket gear like trickflow or others Early Explorer engines (1995 to 19971/4) came with GT-40 Heads, easily indentified by the 3 vertical ribs on the front and rear of the heads or the "GT" cast into the corner of the head just outside the valve cover. 566/. In other words you should be good to go unless the heads are milled down or something. Re: Dooe vs GT40. 535 lift custom ground cam and a dual plane intake it put down 338whp and 325lbft so you might wanna be paying closer attention Oct 24, 2021 · I have a 302 stock bore, 9. *Tested by Mario Andretti and Ford in period. 75@142 95 Cobra R #75-SOLD 06 F250 13 BMW AH3 17 GT350 #5556 GOD'S NOT DEAD Jan 31, 2019 · Hi all: After weighing all the costs to either rebuild my old heads on the mustang, aluminum after market or GT40 heads I decided to go with the GT40's for a couple reasons. trick flow stage 1 cam. Are GT40 or GT40P heads a bolt on for my '65 289 A-code motor? The plan is to use the original cast iron intake & Autolite carb. Sep 20, 2019 · Hot Rod magazine took the final Ford 5. 100 82 65. FLOTEK High Performance Cylinder Heads 1712 Read Street, Evansville, IN 47710 Phone: 1-800-270-0095 I Fax: 812-421-0983 Dyno Results for 351C w/2V heads It has a pretty flat torque curve with 380+ ft-lb from 3500 to 5600 rpm, with a peak of 410 ft-lb at 5000 rpm. Original Styled 4 Wheel Independent Suspension. Dave and his team have amassed a huge amount of experience and expertise and are now creating some of the best performing cylinder head and cam packages for both domestic and import vehicles, be it for street/strip use or full Aluminum heads Dyno sheet with each engine It’s licensed by Safir GT40 Spares and is the only car being built today that can legally be called a ‘GT40 Feb 24, 2010 · Jan 25, 2010. So there is a big gain there. Feb 24, 2010 · Jan 25, 2010. lb. I gained 80 rwhp and rwtq with the change of the heads and a Victor 5. comThe engine is pushing out 360 horsepower on pump ga Apr 04, 2010 · I'm building a 302 roller cam block with GT40 heads with the ports cleaned up and am looking at CompCams for cam choices. any ideas?? im No hate on aluminum heads, actually envy. Out of the box they were tested at 237cfm (515hp)inlet and the exhust flowed 63% of the intake this was with 2. On the left is our 1. Mar 28, 2011 · Im just curious to know if anyone has a GT40 intake/head set up with a E303 cam that has dyno'ed at or broken the 300 rwhp mark. Jan 31, 2019 · Hi all: After weighing all the costs to either rebuild my old heads on the mustang, aluminum after market or GT40 heads I decided to go with the GT40's for a couple reasons. Jul 17, 2012 · The gt40p head is considered the best OEM 302 head made. Messages. 0L, then pulled the stock heads, cam, intake, tb, headers, etc. $900 for these vs Jan 01, 2021 · I know this seems like beating a dead horse but I've read and read countless hours and I can't seem to find a build where someone did it "the right way" as in heavy ported gt40 heads, custom cam, ported lower and upper gt40 intake, etc. phoenixengine. Sep 06, 2017 · Working on my 331 build, was planning on running AFR 165' with my cam (. 7 rr, and gt40 heads. 46" Spring, Ford 351C, Each. Edelbrock E-Street Aluminum Cylinder Heads offer American-made quality and affordable performance. #15 · Sep 28, 2010. 1967 Gurney-Weslake 305. This amazing car was built and correctly registered 1995 . Cobra GT-40 Part Numbers: 1993 Cobra – F3ZZ. - Balanced. Sep 25, 2010 · Re: Question about GT40 heads on the average they make only about 25rwhp, but the GT40p is a better working head because of the tighter combution chambers about 58cc. Holten tells us removing the fan is worth two-tenths in itself, which tells us the fan soaks up roughly Mar 12, 2012 · I started my foxbody build last year and finally got it put together enough to get some dyno numbers. 75 fwhp!!! That's over 50 rwhp I know it's not a real dyno, but it's a sure sign of the difference between the heads. ive also heard that you can lose power porting unless you do it right. All images courtesy of Bonhams. When “ Undercover Ported “, the GT-40 head will flow 202 to Nov 12, 2001 · I know Tickford Port n Polish the head and do alot of other stuff. 02" inlet and 1. @philofab1 May 24, 2008 · The SBF is sensitive to heads, I'd use the X303 GT-40 head (uses 1. The information in the articles was extensive and worth purchasing a back copy if you really want to look into the differences in the heads. -World Products Windsor Sr. NOTES "GT40P2257 is a GT40 MKI Continuation built by Superformance LLC. Rear Pontoons are located into the main Jig and mounted to the Seat back Bulkhead. Aug 18, 2004 · AFR heads reported 75 more HP with just a head swap to the 165's- stock everything else. Jul 19, 2008 · Mid 1997 is when they started using the P heads. It also had different cams and a revised intake manifold. Oct 16, 2010 · Dyno's have shown horrible gains with the E cam, like 10hp, and stock motors with the gt40 intakes/heads and e cams barely breakin 230hp at the wheels. 3 MB: May 4 2017 2:18 AM: HO_Intake_Dyno_and_Track_Data. The GT-40x head should be compared to the AFR165. 25 compression. A 351W based engine with alu heads weighs nore more then a 302 based engine with iron heads. It's the closest engine to beeing Australian. The P's are still cast iron. It had a two-barrel intake with an Autolite carburetor. 400 225 160. 84-inch) and exhaust valves (1. J-9. -C6FE – GT40 castings. 200 146 118 . Then I can decide if I need to add the headres and/or tweak stuff. anyone can make more power with no smog, no a/c, no powersteering, and electrice water pump. use the 1. ", said Dan Gurney holding back a smile. Installtion proceedure is the key to longevity. Robert Yates Racing heads. that will get your compression were you want it with a flattop piston. 7 rockers, stock cam, A3M1 EEC, accufab 70mm TB, 75mm pro-m bullet, bbk long tube headers, cat h-pipe, ultra flo cat back, Oct 17, 2021 · 1,203 Posts. I already have a stock short block out of a 1989Mustang and am looking for somewhere around 300 RWHP. I'm not dogging out Ford's offering because on a bone stock engine they will Sep 25, 2010 · Joined Jul 23, 2006. 46-inch exhaust valve found on the standard E7 heads, but makes up for it with a little more compression, thanks to the smaller 59cc chamber. Chassis Options include-. 300 191 144. well i finally did my first ever carb build, ive always been an EFI guy 302 explorer short block with roughly 80k miles. GT40 the optimum intake, or ping intake manifolds in a dyno cell, but Showdown at the cylinder heads using FelQro. 6 roller rockers on the intake valves. loss in a cyl. Hooker headers w/ 2. Torque 386 NM Jan 12, 2004 · The GT40 heads production was discontinued in the USA years ago and GT40 heads are replaced by GT40P & GT40X heads GT40 heads were only fitted to EB GT & EL GT in Australia. I had to dig, but this is what I found from two different Muscle Mustang and Fast Ford articles: Ford Racing GT-40x Cylinder Heads: Peak HP: 390 hp @ 5,400 rpm Peak Torque: 416 lb-ft @ 4,400 rpm Average HP: 315 hp Average TQ: 386 Early Explorer engines (1995 to 19971/4) came with GT-40 Heads, easily indentified by the 3 vertical ribs on the front and rear of the heads or the "GT" cast into the corner of the head just outside the valve cover. I put down like 230-ish and 285-ish rwhp with 30+% comp. And finally, I see some saying the original Performer is a better intake. These were used in the mid nineties on the 5. 9. My thinking is if I spend $200 on heads, $800 on porting and other parts, Ill still be ahead by $400 leaving room for a retrofit roller cam and lifters. 214/. I personaly would run the E303 over the Trick flow stage 1 cam. Check out the dyno tests on the same engine below. gt40 heads dyno

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