checking valve clearance

[QuantumMotorsports]

Jeff,

Thanks a bunch man. I didn't even think to take the thing apart first. I just sat here and did what you said. My lifter must be a bit different from the roller ones that you mentioned, because when I flipped it over I ended up having a little bit of slop, so I just found a piece of really thin aluminum I had in the shop and cut it in a circle and put it right on top of the plunger (now upside down) under the pushrod cup. Works perfect!! Thanks a bunch man. At least now I can check valve clearances and be sure I know what's going on. Also, let me ask you this, you seem to know your stuff. I've got a 76 302 block with a hydraulic flat tappet cap/lifter setup. And I've got GT40P heads. Do you know what pushrod size will get me closest so that my rocker geometry will be closest to stock? The adjustable rockers I'm getting will only adjust for about a half inch difference in pushrod size. I have the pushrods for the 76 and they seem to be a bit short. I might be able to use them, do you know if the later model pushrods are a bit longer? Thanks man.