12.7 porting

trk2992

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

Copperhead

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.
 
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