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Sid · 01-03-2020, 08:19 PM

You are dealing with a 70 year old engine. No telling how much the heads have been milled.This being said I would probably check valve clearances with clay before I choose a cam. I think stock lift on a 8BA cam is about .310 and a Merc. is maybe .025 more lift. You would also subtract valve lash from that. Isky makes some good garden variety cams like the Max 1 which is about .0364 lift which is very popular. Also the Isky 77B is very popular with a little more duration and less lift. About .0325 (very close to stock lift)
Brian nailed while I was typing.....

01-03-2020, 08:19 PM	#7
Sid Senior Member Join Date: May 2010 Location: Rathdrum Idaho Posts: 737	Re: Valve to head clearance You are dealing with a 70 year old engine. No telling how much the heads have been milled.This being said I would probably check valve clearances with clay before I choose a cam. I think stock lift on a 8BA cam is about .310 and a Merc. is maybe .025 more lift. You would also subtract valve lash from that. Isky makes some good garden variety cams like the Max 1 which is about .0364 lift which is very popular. Also the Isky 77B is very popular with a little more duration and less lift. About .0325 (very close to stock lift) Brian nailed while I was typing.....