Head milling, trickflow 240

PRH said

I recently did two sets of 270’s.
Cutting the decks .044 took out 8cc’s.
It’s about .0055” per cc.

Be aware that not all head resurfacers are capable of producing a Cometic friendly finish.
Sometimes the cheapest option really isnt the the best choice.

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Yep. It’s getting to the point that you need a profilometer just to surface this stuff. I do know some guys are having trouble getting the surface finish correct for FelPro gaskets. I looked at some readings when I was over in Vancouver the last time, and they had a hard time getting the surface finish that FelPro called out.