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Bored&Stroked · 11-04-2021, 07:18 PM

The "advantage" of angle milling is that you're taking away more material on the cylinder bore side of the head - than the valve side. It is one way to help "tune the cat".

Given that I rework my chambers (via CNC milling), valve clearances, piston compression height, etc. - it does not come into play for me. I get the clearances I want, the CR I want, etc - by the work (and parts) in my builds. BUT - I'm putting a lot of time and $$$ to do so.

Ole' Ron has some good suggestions for tightening up the chambers and leaving a bit more over the valves - by angle milling.

11-04-2021, 07:18 PM	#31
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,070	Re: Are these EAB heads OK? The "advantage" of angle milling is that you're taking away more material on the cylinder bore side of the head - than the valve side. It is one way to help "tune the cat". Given that I rework my chambers (via CNC milling), valve clearances, piston compression height, etc. - it does not come into play for me. I get the clearances I want, the CR I want, etc - by the work (and parts) in my builds. BUT - I'm putting a lot of time and $$$ to do so. Ole' Ron has some good suggestions for tightening up the chambers and leaving a bit more over the valves - by angle milling.