1989LXFOX Active Member Jan 19, 2018 54 13 28 May 29, 2018 #1 May 29, 2018 #1 Hello all, I have a GT40 upper and lower intake that has the internal EGR (97 Explorer I believe). I was looking at getting GT40 or GT40P heads. My question is; can I get GT40P heads? Do I have to match the "P" heads to the manifold that offers external EGR? Thanks!
Hello all, I have a GT40 upper and lower intake that has the internal EGR (97 Explorer I believe). I was looking at getting GT40 or GT40P heads. My question is; can I get GT40P heads? Do I have to match the "P" heads to the manifold that offers external EGR? Thanks!
mikestang63 SN Certified Technician Aug 27, 2012 11,606 8,859 214 In the garage May 29, 2018 #2 May 29, 2018 #2 do you presently run the EGR? If not doesn't matter. If yes, then you want to get 3 bar GT40 heads with the holes. Reactions: 1989LXFOX
do you presently run the EGR? If not doesn't matter. If yes, then you want to get 3 bar GT40 heads with the holes.
Mustang5L5 That is…until I whipped out my Bissell Mod Dude Feb 18, 2001 43,260 17,945 224 Massachusetts May 29, 2018 #3 May 29, 2018 #3 mikestang63 said: do you presently run the EGR? If not doesn't matter. If yes, then you want to get 3 bar GT40 heads with the holes. Click to expand... I think you are referring to the air pump passages which are not drilled on the Gt40Ps. The 40ps do have the egr provision on them, although I'd still rather the GT40 heads over the GT40P just to avoid the extra cost of special headers. Reactions: 1989LXFOX
mikestang63 said: do you presently run the EGR? If not doesn't matter. If yes, then you want to get 3 bar GT40 heads with the holes. Click to expand... I think you are referring to the air pump passages which are not drilled on the Gt40Ps. The 40ps do have the egr provision on them, although I'd still rather the GT40 heads over the GT40P just to avoid the extra cost of special headers.