GT40Ps!!!!!!
06-06-2008, 09:19 AM
#24
2nd Gear Member
Thread Starter
Join Date: Jan 2008
Location: Bethlehem, PA
Posts: 211
RE: GT40Ps!!!!!!
ORIGINAL: r.barn
+1, dont bother porting those heads.
Just get a fresh 3 angle valve job done and throw them on there.
You will pick up a good 50+rwhp.
+1, dont bother porting those heads.
Just get a fresh 3 angle valve job done and throw them on there.
You will pick up a good 50+rwhp.
06-06-2008, 09:27 AM
#25
2nd Gear Member
Join Date: Apr 2008
Location:
Posts: 393
RE: GT40Ps!!!!!!
those heads are not worth 50 rwhp, he was kidding. they will be a significant improvement over your stock heads though.
i'd suggest putting 1.54 exhausts in those heads while you get a valve job done, resurface them just to make sure they are flat (taking .010 or so off would help just a touch and wouldnt give you any problems with gasket alignment)
i'd suggest putting 1.54 exhausts in those heads while you get a valve job done, resurface them just to make sure they are flat (taking .010 or so off would help just a touch and wouldnt give you any problems with gasket alignment)
06-06-2008, 09:46 AM
#26
6th Gear Member
Join Date: Feb 2006
Location:
Posts: 5,263
RE: GT40Ps!!!!!!
ORIGINAL: imnotmy77stang
those heads are not worth 50 rwhp, he was kidding. they will be a significant improvement over your stock heads though.
i'd suggest putting 1.54 exhausts in those heads while you get a valve job done, resurface them just to make sure they are flat (taking .010 or so off would help just a touch and wouldnt give you any problems with gasket alignment)
those heads are not worth 50 rwhp, he was kidding. they will be a significant improvement over your stock heads though.
i'd suggest putting 1.54 exhausts in those heads while you get a valve job done, resurface them just to make sure they are flat (taking .010 or so off would help just a touch and wouldnt give you any problems with gasket alignment)
GT-40P heads flow very well for what they are.
It would not surprise me in the least if a 5.0 went from stock 190rwhp to 240rwhp by adding some GT-40Ps
They flow very close to the Ford Aluminum GT-40X heads
