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Old 08-11-2006, 06:35 AM   #26
johnjzjz
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Quote:
Originally Posted by automotivebreath
I mark the bore diameter on the head then I draw a line on the deck surface at a right angle to the intake gasket surface right between the valves up to the gasket area. I then cut a slot 0.060" wide a 0.060" deep with a ball end mill being careful not to damage the head gasket area. I widen and deepen the groove into the combustion chamber cavity to 0.125" with a hand held hacksaw blade and a triangle file.

i am just about to do this as well we were looking to use our bridgeport an .060 ball mill is much easyer to control , we are jammed in the shop so wont have time to get car back together and to the track till end of season but will send you mail on how and pictures of what we did to our AFRs 315cc BBC heads -- jz
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