12.7 porting


Well-Known Member
anyone try porting the heads on a Detroit 12.7 and did it do any good??


Well-Known Member
Nope, but I put on a ported, polished, ceramic coated exhaust manifold, removed the waste gate turbo and replaced with a larger Borg Warner 171702 non wasted gated turbo with a blanket on it. It made a lot of difference. Better economy, and a lot lower EGT's.