Pushrod length?
Pushrod length? I have 7.4's now. I think I will need 7.35 with the new heads. AFR205's milled .030 with stock GM gasket (don't trust cometics, they leak) I know I should use a pushrod length checker, but need to order the pushrods.
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Joined: Jul 2004
Posts: 589
Likes: 6
From: Dallas, TX
is 7.400 the normal length? Thats what Lengenfelter sells with the GT2-3 cam i want but someone told me to do it right you need to measure the base circ on the cam. Usually aftermarket cams are ground -.030" so you would need a 7.430.
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Originally Posted by Cahill93Z28
is 7.400 the normal length? Thats what Lengenfelter sells with the GT2-3 cam i want but someone told me to do it right you need to measure the base circ on the cam. Usually aftermarket cams are ground -.030" so you would need a 7.430.
You have to measure preload to find the right pushrod length, I just don't know how to do it. We have always used a 7.35 on milled heads and a 7.4 on stock. Not that it's my car I want to make sure I do it right.
I'm Using new GM LS7 lifters also.
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