Feb 27, 2018 · 1991 Mustang LX 5.0 Convertible. 302, GT40 Heads, GT40 Intake, 1.6 Harland Sharp Roller Rockers, Accufab 75mm TB, BBK 75mm MAF, BBK CAI, 24# injectors, F303, MAC shorty headers, BBK off road H pipe, Flowmaster 40 series, Ford 4.10 gears, SR Perf Upper and Lower control arms, SR Perf Full Length Subframes, Ford Racing "B" Springs, Eibach Pro-Dampers, Smog deleted, rebuilt AOD with 4r70w gears

May 28, 2004 · GT40 heads-any small block ford header will fit..they have the same plug angle/bolt pattern as stock heads GT40P heads- only certain headers will work,due to the spark plug angle change. the plug sticks out almost 90* instead of on a swept angle headers known to work with GT40P heads are mac 1-5/8 longtube Mac shorty BBK longtube BBK shorty ...

Nov 2, 2004 · The GT40's have 1.85"/1.54" valves, GT40P's have 1.85"/1.46" valves, and the stock E7TE's have 1.78"/1.46" valves. Based on that information, I would expect the GT40 Iron head to significantly outflow the P's, but that would prove an incorrect assumption. The P's not only outflow the original GT40 heads, but they do it everywhere.

Nov 5, 2023 · Right now, I have a real GT40 intake with GT40P heads with a stock cam, BBK long tube headers, 70mm TB, and 75mm mass air meter. While it’s still running well the short block is coming up on 200k miles and I’m trying to figure out a plan for a rebuild.

May 17, 2004 · Vortech SC trim, AFM Powerpipe, GT40p heads, 1.6 FMS RR, Pro-M 80mm, 24# injectors w/8:1 FMU, Cobra intake, FMS ceramic headers, high flow H-pipe, Flowmasters, subframes, FMS 65mm tb, 93 Cobra rear disk conversion, 01 Bullitt full suspension kit, FMS alum. drivershaft, cobra upper control arms, 3.55 FMS gears, Moser axles, MSD 6BTM, Mark VIII ...

Feb 12, 2004 · In the official Ford Technical book it says. 1996 and early 1997 explorers have the standard GT40 head like the cobras. All engines assembled after Nov. 96 have the "P" heads. The part # for the 96-early 97 explorer GT40 heads is …

Jul 12, 2011 · yes the stock e7 heads suck. if the heads you are getting are gt40"P", you will need new headers to make them work. the gt40 and gt40P would be good upgrades over stock heads. i dont know 100% they will work with your flattop pistons, but you can flycut if need be. iirc, gt40s are 64-65cc chambers and the e7s usually run between 65-67+/-.

Oct 3, 2009 · GT40p cylinder heads are stock 302 cylinder heads ('97 - 01 Explorer/Mountaineer), and will be a little restriction for the 351w regardless of your goals with it Are stock heads worth the added expense on the hardware and details for the required exhaust system?

Oct 10, 2013 · Unless you're just nostalgic and wanting to keep ford iron heads on the car, it isn't worth spending money on GT40 iron heads. I'd save that $600 and invest in a turbo kit! With a turbo on those heads and just stock cubes you can make enough to crack a stock block LOL.

Dec 15, 2024 · 95 Mustang GT 331 10.44:1, TFS 190 11R heads, Victor 5.0 intake, F303, 80s, 76/65, HP hotside, custom coldside, MS3ProPNP