hawk 250 big bore kit?

[Gh426]

E85 / e50 is great at cooling, but yes port work, raising compression via shaving the head, thinner head gasket. probably good to run the play doh on the piston valve interference test, all great stuff

[Megadan]

Originally Posted by Gh426

E85 / e50 is great at cooling, but yes port work, raising compression via shaving the head, thinner head gasket. probably good to run the play doh on the piston valve interference test, all great stuff

If you saw how much deck height there is between the piston and the top of the jug, you wouldn't be worried about valve clearance unless you put in a higher lift cam. I shaved 1mm from my head, and I could probably do the same again and still not hit the piston.