CNC Mill Mark Removal in Intake Port

pittsburghracer said

I didn’t watch the video but nobody said anything about an as is cast heads. Smoothing and SHAPING goes a long way towards making a port better.

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I know it's not a cnc head but came across the video thought some might be interested in the results.


14:50 is where he shows the flow chart, recap under .500" there's little/no change above to 1.00" 10-25 cfm gains with 60 grit.