pushrod length ball to cup

Wolverine makes an adjustable ball to cup pushrod. You need something like that in order to measure at least 2 intake and 2 exhaust pushrods on each bank. Then, you can order the correct length pushrods from a manufacturer. (i.e. Comp, Mancini, or whomever you choose). If you go this route, you will not be guessing on the correct length because your heads and block might have been surfaced, and this will affect the overall length of your pushrods. Just a suggestion, I went through 6 sets of pushrods before doing it the correct way.