302 with gt40p heads horsepower

The Edelbrock Performer RPM is a good choice, but Holley, Weiand and Ford Motorsport also have similar offerings. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! We did the installation at Holten's place of employment, Motorworks, in Longwood, Florida. The only failures Ive had were timing chains and a couple broken rods in a mid 80s 302 with 200,000 miles on it that got about 35 lbs of boost stuffed into it when a pop off valve I bought on ebay failed. Upgrading Fox Body Cylinder Heads - AmericanMuscle.com Here is the lowdown on exhaust manifolds and VALVE SPRINGS. GT40Ps have 58cc. THANKS VERY MUCH! Assuming this will be a daily driver engine, a short duration camshaft, especially when combined with a four-barrel dual plane intake manifold and headers, will deliver extremely snappy throttle response and the whole combination will increase the torque and peak horsepower by somewhere in the neighborhood of 20 to perhaps 35 horsepower. Not bad for off the shelf parts and a stock shortblock. JEGS High Performance. 68stang351 Founding Member May 16, 2002 850 These are some of the pictures I have showing the Explorer manifolds. This is the main reason why these engines are not modified as much as the small block Chevy. How much HP and torque do you think I. Be careful, I was once bitten by one of those reptile engine builders. No-option stripper- I like strippers. It's an 86 roller 5.0 engine that had a recent rebuild sometime in the past with keith black pistons, otherwise stock. Then why did you port the heads and how do you know if you made an improvement. Hey all, I'm working on building a 302 with my gt40p heads. Find many great new & used options and get the best deals for FORD GT40p 4 BAR HEADS IN GOOD CONDITION w/ONE BOLT BROKEN at the best online prices at eBay! T5z and 3.89 9" TL rear. But the part about a cam replacement possibly being a labor intensive undertaking is correct. HAD '82 GT monochromatic (red).black cloth HAVE On the power side, we selected 400 hp as an impressive but reasonable output for our small-block 5.0L Ford. Actually, making around 240 to 250 hp with a near-stock Windsor 302 will feel pretty good. We turned to Rare Auto Design in Orlando for dyno tests to find out how much horsepower we gained. Well offer one as an example. Through Central Coast you can have the heads fully prepped for your combination. Keep in mind that swapping camshafts is a fairly extensive effort. The action you just performed triggered the security solution. These cast piston short-blocks are not quite as good as the forged piston 5.0L that came in Fox-body Mustangs, but the GT40P heads flow much better than earlier 5.0L heads. But what we were most impressed with was the solid gain in torque over the smaller Voodoo cam from 3,500 and up. That's an improvement of 22 hp over Test 2. The reason for this is that we're actually replacing mildly worked E7TE heads. Im running stock GT40 heads with stock 4.000 bore on cylinders and a Lunati cam with 256/262; Duration @ .050 (Int/Exh): 213/219; Gross Valve Lift (Int/Exh): .483/.499; LSA/ICL: 112/108. Step 1. That's a 40 per cent increase in power from a simple head and cam swap, and one seriously happy Mustang owner! The gt40p head is considered the best OEM 302 head made. In order to make Coyote-type power you will need some expensive, high-flow cylinder heads with a short block that can withstand spinning in excess of 6,500 rpm. Ford 302W / 5.0L History & Specifications - The Ranger Station Their weak point is that the rotator used on the exhaust valve is very thick. Im now thinking of adding a cam to match the carb. I am working on a set of iron GT40s hoping it goes faster. Adding the headers may also require a slight increase in secondary (and possibly primary) jetting to ensure the proper air-fuel ratio, but thats also an easy tuning change. If you know him, ask him. The only way to really make more power is to go with a stroker kit, blower and/or heads. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. (Image/Harrison Creamery). I love my setup and it is very strong engine. GT40P heads, what kind of performance do they give? - FourEyedPride.com This website is using a security service to protect itself from online attacks. REMANUFACTURED FORD 302 5.0 COBRA GT40 CYLINDER HEADS | What's New In a lightweight Fox or early Mustang with a five-speed behind it, this would be a great little street engine. Anythoughts? I added a link to it. Along with the heads, we used MAC headers for GT-40P heads. Ford's seminal 302 engine (later re-dubbed the 5.0) has been popular with budget-minded hot rodders for decades. This combination should be good for about 400 horsepower and as much as 500 if you opt to use the stronger aftermarket pistons. They are more expensive than standard head gaskets, but they also do the job and are worth the additional money. Depending on the Headers you have you might be okay. Those heads were unported and had stock valve sizes! The heads got a 3 angle valve job, new valves from speed-pro and all the valve train was from crane that matched the current hydraulic cam. Yea. Not sure how they would mate up to your existing exhuast, but otherwise they should work. Overview. First, adding headers will improve power on the existing combination. Definitely going to use my P heads. Assemble the rotating assembly with a stock 5.0L crankshaft, a set of 5.0L rods and the specified pistons with stock-type rings. I wouldnt recommend reusing lifters though. many thanks to all you eco-hippies giving me dirty looks and helping me feel llike an overall badass rebel. The fix: basic power upgrades for a sluggish 302 The heads that were used were also old C8 casting with 58cc chambers. this head is complete with new 1.837 int valves and 1.536 exhaust valves. this is the price for one head. We set the timing to 34 degrees and rejetted the carburetor to get our desired 12.5:1 air/fuel ratio. Come join the discussion about performance, production numbers, VIN decoders, modifications, troubleshooting, power adders, DIY tutorials, and more! This is not a criticism but instead consider it to be more of a heads-up. The longer duration created a slight loss of torque below 3,300 rpm compared to both previous cams, but beyond that mild loss of power, the bigger Voodo out-powered its smaller cousin, cranking out a peak torque of 355 lb-ft at 4,300 (a gain of 7 lb-ft over Test 2) and charging to a peak horsepower of 376 at 6,000 rpm. In mid-1997, the Explorer and Mountaineer 5.0 L heads were revised and renamed . ported GT-40p, ported cobra intake, 65mm BBK, e-cam with 1.7s, longtubes, off-road x-pipe with flowmasters dumped. Max hp out of gt 40 heads | Mustang Evolution Forum Mac and Ford Motorsport both make a GT40P spacific header. Headers and a camshaft will help but the engine really needs aftermarket 3/8 inch connecting rod bolts and aftermarket cylinder heads. Car Craft mag. GT40 Heads On A 289? | Ford Muscle Cars Tech Forum Choose a cylinder head before you install the pistons. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. i know a guy who used to build race engines so he has all the right tools, how much would it help to get the heads ported and polished or anything else he could do to them. The GTp heads are like GT 40's with smaller combustion chambers and the spark plugs are relocated for a more efficient burn. However, since Holten's car has an E303 cam, we didn't want the pistons and valves becoming too close, so we chose the 1.6 rockers. With gt40p heads and 289 hipo exhaust manifolds changing sparkplugs is the same as the original 302 heads and manifolds, I use the spark plugs that are recomended for the explorer with gt40p heads and you can use straight or angled boots. Sponsored. OR you could put your automotive journalistic skills in motion by reporting on the many new modern components available for the latest generation 351 Cleveland. Cloudflare Ray ID: 7a2e2d95dedea1e4 How to Build a Cheap Drag Racing 302 Ford Motor | It Still Runs All manufactured using advanced CNC technology for the extreme durability and precision required of the modern canted valve Ford Small Block at power levels around the 1000 mark reached during recent competitions at the EMC and at the strip. The GT40P heads flow a lot better than stock 351 heads. Stock valve sizes? Ford offered a performance head that was a stock part on 1993-1995 Mustang Cobra models and pre- 1997-1/2 Ford Explorers and Mercury Mountaineers equipped with the 5.0 L engine called the GT-40 head (casting ID F3ZE-AA). Now he serves as a regular contributor to OnAllCylinders. PTP Engineering front suspension and 25540R17s all around. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! GT40P heads, 302 and Victor Jr. intake: - Factory Five Racing Forum There are a couple of reasons for this suggestion. . This time around, we chose a shining example of this junkyard art form. Slover primarily focused on the exhaust side of the GT40P heads. When compared to the new generation of performance engines on the market today like the 5.0L DOHC Coyote engine, your engine will not come close. Understanding Ford's Fox Body GT40 Cylinder Heads - CJ Pony Parts P-heads have a smaller combustion chamber at 59cc, which will bump the compression ratio up on an otherwise-stock 5.0 engine. Going from your heads to the GT40p heads will bump your compression by about a point.so hello bottom end torque. by travis Sun May 03, 2020 8:33 am. You can have your current 28 oz rebalanced to 50. These are some of the best castings Ford ever produced for this engine, and are still fairly cheap and available used. I turned it because it was tired when I got it. Obviously, tuneups will vary. I was thinking the same but the enforcers are $647ea now so $1400 (inc tax) is the entry price for good set of heads. #2::: Get advice from a reptile engine builder with experience(first flag for me is when somebody refers to an ENGINE as a MOTOR! Well also assume that this engine is running stock exhaust manifolds. The factory heads have a boss for the exhaust valve that restricts flow through the exhaust port. The specs are a conservative 212/218 degrees of duration at 0.050-inch tappet lift but offer a really nice 0.512-inch valve lift for both the intake and exhaust. Our recommendation would be, rather than change the camshaft, you might want to look into adding a set of long-tube headers and a dual exhaust if the engine is not already so equipped. Not looking for crazy HP. well i finally did my first ever carb build, ive always been an EFI guy Black 1985 GT: 408w, in the 6's in the 1/8 mile. Test 2: Changed to the smaller of the two Lunati camshaftsno other changes. Im new and Im currently building a 302 on a budget and want to raise compression without milling heads but by pistons and I want to get close to 10:1. Different years can have different combustion chamber sizes but ffor the most part there will be no performance increases by going with 302 heads. Its always refreshing to see a FORD getting a little face time in your column, even if its a tired 302 with no great expectations of setting the world on fire when the dust settles. check out the. In addition, the cam timing was designed for torque, with duration somewhere around 190 degrees at 0.050 with roughly 0.450-inch lift. Nice to see actual dyno results instead of "butt dyno" guesses. Budget 300HP 302 Build GT-40 heads HP increase | Mustang Forums at StangNet will gt40p heads fit on a 302 | Ford Mustang Forum However I think the opportunity window is slowly closing. I'll save the effort and lighten my front end by 50# with aluminum. These are a great head but do need some machining mods to make they really work well. And have discovered something that I dont think anyone else knows. Related Resources Mustang Generation Nicknames: What Do They Mean? I may do some port matching and a little cleanup, otherwise just a set of springs and cam and see what I have. Paying a premium for a set of GT40P heads or dumping money into some to get their performance to rival aftermarket is not for me. In an effort to preserve the history of the Early Fox Era, FEP covers the following vehicles: 79-86 Mustang and Capri, 84-86 Mustang SVO, 78-83 Fairmont & Zephyr, 83-86 LTD & Marquis, 80-88 Thunderbird & Cougar, 82-87 Continental, 84-92 Mark VII, 81-82 Granada. Compare. You gave me the info I was looking for, and I really do appreciate it. Keywords Late-model ford GT40 and GT40P heads with 1.84-inch intake valves will also flow 185 cfm at 0.50 . And agree the cams do help and a few tricks with the heads that I have discovered really make a difference. 87-93-95 Ford Mustang GT40P Engine Cylinder Heads REBUILT 302 351 GT40 As noted, this is looking like hes building a 351 Lightning truck motor, which is a good way to go. The older pushrod engines just dont offer the same kind of power potential for their displacement and it all has to do with cylinder head flow. Within a few hours of his discovery, the engine was sitting in the back of his truck on its way to a new home. .. i would not buy valves unless you need them amd would not switch to studs with these heads for your low hp . They also have emissions legal heads as well. Gt40p heads - FourEyedPride.com AFR 165 Heads | Have options for pedestal mounted rocker arms or stud mounted rocker arms. Also, the spark plug angle makes it a pain. After we installed the heads and with the fan off, he ran a 12.46 at 107.9. Yes- thank you. For the most part 302 heads and 351W heads are the same. We then dyno'd the car without the fan to get some consistency and were rewarded with a peak of 316 hp at 5,500 rpm, and 348 lb-ft of torque at 4,000 rpm. Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) - anyone have experience with GT40P heads on a 92 351W - ive got a 92 F250 with a 351W that needs a pretty serious rebuild. The kit offers adjustable power from 50 to 250 hp with a simple jet change. All in all, the addition of GT-40P heads to any 5.0 Mustang is a worthwhile venture, especially if you're on a budget (aren't we all) or shooting for the Trophy Stock title. The reply has so many assumptions that I cant even assume to know the answer. P-heads have a smaller combustion chamber at 59cc, which will bump the compression ratio up on an otherwise-stock 5.0 engine. how hard to put on? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Here a comparison of different heads on a 302: I'm very happy with my GT40P. We also discovered some issues with the GT40P heads that required changes, so we added valves from Manley that eliminated the exhaust-valve rotators and allowed us to set the proper valvespring installed height. fuel injection system . If you have a early 351W ie pre 76 it probably . If you dont feel comfortable doing this higher a pro. These are among the best of the iron Ford Windsor heads as they tend to flow much better than earlier castings. 99 Explorer engine (302) with GT40P heads - Ford Muscle Cars Tech Forum JUNKYARD GT40P HEADS-ADD 30+ HP TO YOUR 5.0L (FOR FREE?) Maybe I'll think about a cam swap? That's a good combo in my book. 1986 Short block with notched pistons. This modification will help your late-model GT40P heads work better with the old-school carbureted intake setup. built one using a 91' HO short block with a set of AFR 165 heads, Weiand . $930.00 + $55.00 shipping. 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.

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