i bought hardend 7.4 pushrods about a month and a half ago for my cam only setup. They now have a 6,000 miles on them and Now im about to do heads and a bigger cam. can i reuse my hardened pushrods i bought a month and a half ago or do i have to buy new ones?

 

I ordered everything for my cam swap except the pushrods. Instead of guessing which length I will need, I ordered a pushrod length checker ($20) and will order the correct pushrods once the measurements are made.

....as long as your 7.4" pushrods are not damaged and they are the correct length you could reuse them.

If you mention some specifics about your set-up maybe one of the guys on here would be willing to take a guess as to what length PR.

 

their just prc stg 1 heads with stock gm head gaskets and a ms3 cam

 

I would imagine when you measure it you will be around 7.4" stock length but you will want to double check to get the correct lifter preload, measure the adjustable PR length at zero lash and add the rec. lifter preload (.080 I believe).

 

How much are your heads milled? Whats the base circle of your cam? Im using 7.400 PRs on a 1.45 base circle with heads milled .040. That puts me right at .010 over stock preload.