How much HP does GT40P heads add? - Quora GT40, GT40P, would be great factory heads. Best so far: 10.92 @ 123mph with a 1.49 60ft. 302 Windsor heads vs 302c heads? (standard aussie heads ... GT40P 302/351W Heads FOR SALE! | SVTPerformance.com . Aftermarket Cylinder Heads. Ford GT40P GT40 P SVT Explorer 302 V8 5.0 5L H.O. Save. mine made ~270 at the wheels. Late-model ford GT40 and GT40P heads with 1.84-inch intake valves will also flow 185 cfm at .50-inch lift, but flow more than the 289 heads at all other lift ranges. Basically they are the highest performing stock ford production head available for the 5.0l. In mid-1997, the Explorer and Mountaineer 5.0 L heads were revised and renamed . FIND A 5.0L EXP. The high performance 302 engine block was produced in Mexico and had a higher nickel content, therefore, making it stronger. Everything fresh from machine shop wrapped in plactic.Edelbrock 2121 Aluminum Intake 289 302 150Powermaster Ford Mini Starter 125New flexplate, balancer, gasket kit, misc. The whole sbf head thing is pretty complicated. Just put some 1.7 pedistal rocker arm on along with a mild camshaft (make sure to use the correct valve springs), you will make over 300 flywheel hp. Almost everyt best stock ford ever made. Amazon.com: NEW SOUTHWEST SPEED BLACK T-BUCKET FENDERLESS ... Anyhow, just to bring everyone up to speed on my little project, here's the plan: 306 (5.0L overbored .030-in), ~10.35:1 compression, TRW forged flat-top pistons, factory rods and crankshaft, GT40P cylinder heads w/ only a mild port cleanup and shaving, roller rockers, full-length headers, Exploder intake, 65mm TB, ~3000rpm stall through a . The Mustang 5.0L Trick Flow valve spring kit includes 16 each of 1.47" diameter Mustang valve springs with dampers (110 lbs. Ford GT40P Cylinder Heads Mustang Explorer Gt40 4 Bar for ... Ford GT40P 302 5.0L 4 Bar Cylinder Head Assembly Pair w/ 1/2" Head Bolt Hole. It was a low-performance head designed to increase economy, due to the gas crunch. Step 1. gt40p's,Bcam,1.72 rr's,exloder intake,etc.. EFI. These are some of the best castings Ford ever produced for this engine, and are still fairly cheap and available used. Well not sure of the cam specs but the valves in the GT40p heads are not that big, so you should be fine, you can also find out the size of the groove cut into the pistons to clear the valves, most after market pistons are cut for the 2.02 valve. They are doing me no good right now so they are up for sale! Anyways, I know the gt40ps will bump. Get into 58cc heads, and you're talking closer to 11:1. Ive heard that gt40p heads go flat in hp after 400 lift so duration is your friend. The exhaust ports are the weak link on all of them. For both the GT40 and GT40p heads, I STRONGLY suggest upgrading the valve springs. These power numbers will be very similar with both the GT40 and the GT40p Cylinder heads. You will have to get special headers to fit these heads since the spark plugs are angled differently than normal 5.0 heads. There's potential for 300+ streetable horsepower there. (Please note these are not GT40P Explorer heads). Ford 289 302 332 347 427 5.0 Top End Kit Aluminum Heads .700 Springs Gt40 Efi 4 Bar cylinder heads 289 351. We are offering a pair of original Ford Cobra 5.0 GT40 cast iron cylinder heads. If these heads happen to have much larger valves, piston to . Ford Shortblock with Rebuild Kit RCF302QP .020 over. These MAC Shorty Unequal Length Headers are designed to fit the 1986-1993 5.0L V8 Mustangs with production and new angled spark plug 5.0L GT-40 "P" cylinder heads. Re: Choosing pistons to complement GT40P heads. Early 351w's have bigger valves. Save. very mild cleanup of the ports (DIY in my basement) i would think a carb would be closer to 300 too. Really, it was only at its best when coupled with the GT40 intake manifold. or Best Offer. BE sure to order the correct headers for your heads, a standard header will not clear . best et 11.13 and no head problems yet to date. So I've got the motor and heads already for my maverick project. But it isn't headers. That carbureted GT40P motor made 465 on th engine dyno with a .500" 239/244 camshaft, Holley 650 carb and Weiand Stealth intake. All OEM int/exh manifolds will bolt on. These engines came with the GT40P head, which even with its small valves, offers really good performance. Most of the time, GT-40 heads are worth a good 20-40hp over stock heads. Ford Australia also built some stroked, 5.6 L Windsors. The best set that I had were some custom JE's that along with some creative milling of the heads netted me a nice 13.2:1 compression. SPONSORED. About as high as I want to go on 87 or 89 octane pump gas with my cast pistons. 69-70 351w and gt-40s have bigger intake ports. 668. ported GT-40p, ported cobra intake, 65mm BBK, e-cam with 1.7s, longtubes, off-road x-pipe with flowmasters dumped. Application: Hydraulic Flat Tappet cam applications. I think AU falcons came with the explorer intake (I'm not 100%), and they all had gt40p heads, too. If anything, it will make less power. Share - Ford Windsor V8 5.0 Xr8 GT40P Cylinder Heads (2) CURRENTLY SOLD OUT. Car Craft mag. Some exceptions are GT40 or GT40P irons, which can be had for less, but the performance gains are commensurate with the savings. Include description. Can I put 302 heads on a 351W? If I could afford after market then I would have gone with something else. Adding to my '89 302 w/ stock rotating assembly: Explorer intake, have it 1 5/8" FRP shorties, have them 65 mm TB, have it 75 mm ProM MAF meter w/24# injectors; I know C&Ls are less expensive, but seem unpopular here - I'm still learning this EFI stuff. GT40p Heads | Note: These heads have a different spark plug angle, which will require headers that clear the spark plugs. For the most part 302 heads and 351W heads are the same. LOW BUCK, GT40P 5.0L HEADS-CHEAP & EFFECTIVE. Performance For Ford Mustang Extractors Headers 289 302 347 Gt40p Heads 1964 1965 1966 64 65 66 , Find Complete Details about Performance For Ford Mustang Extractors . There are a lot of variables that must be addressed to give a better estimate, but a good basic estimate is 20-40 HP at the crank. Mar 29, 2009. But there must be more potential from 302c heads than GT40Ps. Last edited by BLDTruth; 04-22-2017 at 11:27 AM. You will have to address the 50 oz balance of the 5.0 engine by getting a 50 oz flywheel. Ford Factory 5.0 Performance Cylinder Heads. Long tube headers are a terrific idea, but you need to open up the exhaust side. I'm not sure about the dimensions, but the GT40P heads, if I recall right, I think were produced for trucks or Explorers and are different. Edelbrock 5089 Complete Pair Cylinder Head. My 351w is a 1974 with stock heads and pistons. Vehicle: 1972 2 door 302 maverick, 1986 5.0 stang gt convertible,66 mustang coupe, HEMI ram. the heads are stock, redone with new spings, stock but new, i dont think i will have a problem with it, i hope, if not where could i get a cheap set of springs, i dont want this build going over a 1000, have about 350 in it so far with cam heads and heads gaskets and all, what rockers should i go with and should i convert to MAF, i saw the wiring kit on ebay for 39.99 then all i would need is . 2 L was to be an interim engine which would remain until the new V6 was in production - the 255/4. of seat pressure at 1.800" installed height). Actually the regular gt40's in either aluminum or iron are the good ones but the gt40p's are only a slight improvement over regular 302 heads. The 5.0L with the GT40 head had a 9.0:1 compression, and the 5.0L with the GT40P head had 9.1:1 compression. running this heads for 2 years plus on the race track on a stock bottom end ,292 comp. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . I'm wondering how these heads will interact with the paxton 1220 sl supercharger I'm trying to put on. With 12cc pistons you're well over 10:1 with 64cc heads. I am pretty sure that you can use the old style K Code exhaust manifolds produced for Mustangs with them and repo's are available. I have some gt40p heads that I was going to enlarge the head bolt holes so they would fit a 351w. How to identify your GT40 heads look for a "GT" or "GT40P" stamp inside the head casting or a three-bar (GT40) or 4 bar (GT40P) stamped on the side of the head. Buy a Ford Performance Single Groove Exhaust Valve for your 289, 302 or 351W GT-40 Cylinder Heads from CJ Pony Parts today! Check manifold for port match; not all intakes are . If by 302 you mean an early '67 on flat tappet engine you will, as he said, need to sort the steam holes. Trickflow Performance Upgrade This Trick Flow valve springs kit allows you to install a high performance cam of up to .542" lift on any 289-351W with OEM cast iron cylinder heads. That said there are some better aftermarket options for heads also. built one using a 91' HO short block with a set of AFR 165 heads, Weiand dual-plane and a Road Demon Jr. 625-cfm carburetor. Heads are machined for screw in rocker studs (about $300 worth of machine work). Comes with parts to fit the staggered tip length valves used in SB Ford GT40P heads. Let's start with the GT40, these heads can be found on Ford Mustang, Explorer and SVT/truck Lighting applications. Performance Valve Spring Kit for SB FORD GT40P. Hey all, I'm working on building a 302 with my gt40p heads. The GT40 was used on mustangs and some explorers, GT40P on 97 explorers and Mountaineers I believe. The actual performance boost of the GT40 head isn't as noteworthy as you might think given the reputation this cylinder head has amassed. I've got gt40p heads for it I'll be running, and can't afford better . Free shipping Free shipping Free shipping. Category. T5 with 3.73s. Vehicle: '70 Maverick Grabber. Stainless steel valves are included, have been reground, and are 0.100" oversized. The bottleneck will be the heads. SAVE CLOSE TO $200.00 FOR THE SAME PRODUCT JUST DIFFERENT BRAND NAME. As previously stated, find some early 351W heads or have your 302/289 heads ported. I just upgraded my 94 GT with GT40P heads and I installed a trick flow stage one cam.I am pleased with the results for what I have in them. A set of race-ported 351W C5AE heads will net you a whopping 215 cfm. Free shipping Free shipping Free shipping. Finding Gt40p heads at the junkyard is getting more and more complicated and if you want to upgrade the heads you have to take into account the costs of the machine shop and compare everything to a set of cheap aluminum heads. The engine was only rated at 215 hp but at least had 9.0:1 compression. posted 10-21-2005 12:45 PM. The best 351W head castings were produced from 1969 to '74, with right-sized chambers, ports, and valves for the 289/302. Go for it if you get them super cheap and can get headers/manifolds super cheap as well but otherwise I'd say it's a waste of time and money. GT40P's, 600 cfm Holley, Performer intake and matching cam, Blackjack headers on a 302. $700.98. I would like to see if someone could build a 450hp 302 with pump gas and no power adders. This version is for SB Ford GT40P w/ Hyd Flat Tappet cam/lifters. Aclot of racers that have to meet stock OEM heads requirements, also uses these heads. Buy NEW SOUTHWEST SPEED BLACK T-BUCKET FENDERLESS ROADSTER HEADERS FOR SMALL BLOCK FORD ENGINES, 260 289 302 351 WINDSOR FORD GT40P HEADS, 32 FORD MODEL A STREET ROD, HOT ROD, RAT ROD, NOSTALGIA, VINTAGE: Headers - Amazon.com FREE DELIVERY possible on eligible purchases I picked my heads for $45 and a buddy did all the machine work (larger exhaust valves, milling the heads, valve job . Brand New. That will increase the airflow through the engine however the airflow can be stopped by a stock exhaust system along with that head there are certain things that you must also put on the the heads so that you can get the advantage of increase . If these heads happen to have much larger valves, piston to . They have 150k miles on them, alot of people have bought GT40P's from the guy he got these from and have been happy. If you're seeking an aggressive camshaft and 400 horsepower, stock cylinder heads probably won't be your casting of choice. LOOK NO FURTHER THAN YOUR LOCAL JUNKYARD. Shaun makes a good point as usual. Also, GT40p heads DO NOT have smog ports. Reference from: lembonganbreezevilla.com,Reference from: mail.worldofpaintings.com,Reference from: spherexratings.us,Reference from: muhasebe.rhnyazilim.com,
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