cam shaft specs

[Verne_Frantz]

Al, Since they all had some lash, I doubt it's a hydraulic cam but there's another way to check for one. Set up a dial indicator on the valve spring retainer. With the valve closed, turn it down to zero lash then give it another 1/2 turn or so. If they're hydraulic, the valve will open first, then as the oil bleeds out of the lifter the valve will come back up and you'll see it on the indicator. IF they're solid, the indicator won't budge after you let go of the wrench.
I'm not familiar with solid lifter small blocks but if it's a solid cam, make sure the exhaust lash is at least .020" if not more. It's important to let the exhaust valve stay closed a bit to let it give off some heat to the seat.

Verne [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]