PJB

I think you will need different headers with the GT40P heads

1BIGMOFO

why different headers?

1BIGMOFO

noone else has any idea?

95walter

the spark plug angles on the gt40p are different so you will need different heads to go around them. nice car by the way

gspfunk

^^^Correct. The P heads relocate the plug to the center of the chamber, changing the plug angle. FRPP shorties will fit P heads. You really just need a header that comes out farther from the head before the primaries bend down toward the collector. Most longtubes work from what I hear.....

1BIGMOFO

thanks a bunch guys. I had no idea. I am doing some reascurh and i think im just going to get a 331 longblock. I can get afr heard for like 12-1300 and i can get a whole longblock w/ heads for like 3000 or so. I think im just going to do it all at one time when i get me taxes back. Have any good ideas? Thanks guys!

musclemustang94

Dont get a DSS long shortblock.

1BIGMOFO

any paticular reason? I am totally unsure what way i want to go with this, all i know is i want a 331 and i would like to keep my options open to supercharge it for the future, What compression should I be looking for?