I have a 97 GT. I looked into PI heads which are the heads that are on the 99 and up GTs. I noticed that QUICK4.6 runs a 13.93, is that with only PI heads?
yeah, I ran 13.93@102.07 with box stock '01 heads, an '02 intake, high flow cats, and 15 degrees of timing. no porting, no tune, and stock manifolds. this was on the stock 2.73 gears and dunlop street tires.
It might better to get 01+ heads because I heard that there was an issue with the 99-00 one not fitting the stock valve covers. Anybody else heard this?
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1996 Mustang GT 5-speed Convertible--Silver with black leather
You'll need the same tools you'd need for a headjob. Torque wrench, assorted sockets and ratchets, gaskets and RTV, gasket scraper, screwdrivers, pliers and other bascis. I've never done a PI headswap, but that's just an off the top of my head guesstimate.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
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Originally posted by Big_gar420 It might better to get 01+ heads because I heard that there was an issue with the 99-00 one not fitting the stock valve covers. Anybody else heard this?
In 01, Ford moved the oil filler neck to the other side of the engine so the Bullit intake could clear it. There are also slight differences in the valve train specs between the 99 cars and the 00+'s.
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2008 Toyota Tacoma Prerunner SR5 Reg Cab
2.7 4 banger
No mods (yet...)
There are some good tech articles on line for the headswap instructions. Quick wrote one himself Im pretty sure. It was very informative and should tell you all you need to know (what tools, extra peices). A good article also tells you where you are most likely to run into trouble. Unless you have done much wrench turning in your time I wouldnt recommend doing it yourself. It is a rather involved procedure. If you are going to do it get a good camera and take a whole roll of before shots in good light, and have them developed before you start. Then print off one of the better illustrated tech articles and have it there with you. It can be done by a novice mechanic, but I wouldnt want a first year intern doing openheart on me...JMHO. Good luck, I'm going to be doing the same thing this summer.
Jeff
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'97 GT with 80mm C&L MAF, C<rue-Flow CAI, MAC 70mm TB, Superchip, 180 thermo, B&M Ripper, King Cobra Clutch, FRPP aluminum quad/adj cable, MAC O/R H pipe, MIL's, Flows, Granatelli Solid control arms, FRPP 4.10's, FRPP aluminum driveshaft, Fidanza aluminum flywheel, FRPP 9mm wires, TMD aluminum U/D pulleys, Steeda full length SFC's (welded in), and 17" polished aluminum Cobra wheels with Nitto 555 Extremes, Kenwood/Alpine sound. Waiting for install: PI intake.
the best place for a step by step would be to read both MM&FF and 5.0's articles about the headswap and to get a good shop manual. Unless you're familiar with engines I wouldn't attempt this swap. The modular is essentially like any other V8 except for the fact that its cams sit on top of the heads, therefore making the timing chain situation an interesting one.
when i do the swap do i need a new intake because i already have an aftermarket one, and do i need a new manifold? once i buy the heads what additional parts will i need?
i'm assuming you mean you have an aftermarket cold air induction kit, and no, you dont need a new one.
as for the intake manifold, yes, you'll need a 99+ intake manifold because the teardrop ports on the stock manifold won't match the rectangular ports on the PI heads.
dont waste your time with the non PI heads. they can flow very well with port work, but if you install a set of ported PI heads you're going to see more power. Especially considering the fact that the PI heads bump the compression.
PI heads 
