GT40-p or GT40-x

[Drews93fox]

I just blew a head gasket on my car and have a friend that has a set of gt40-p's and gt40-x's that i can get from him. My question is which are better and why? I do have a turbo setup and the headers on the car now are not forgiving, and i had to notch the exhaust pipe coming from the turbo down so i could get the plug wire on the sparkplug. I think that the P heads move the sparkplug to a different location, to fire in the middle of the piston. Thanks for all of the help.

 

[NIKwoaC]

The X is the better head, and yes, the Ps usually require a special header. Watch the combustion chamber volume, I believe the Xs came in two different sizes, one being 58cc, which will raise your compression ratio if you're running stock heads right now.

 

[stykthyn]

X's are aluminum and wont require special headers. The p's are iron heads. unless you the p's are basically free I dont see why picking them is a logical choice.

 

[NIKwoaC]

I'm pretty sure there was an aluminum version of the Ps available at some point, but yea, either way the Xs are mo betta.

 

[Drews93fox]

ok thanks guys I think im going to go for the X's