ls6 heads and pushrod length

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04-08-2011, 10:15 PM

#11

fastnblu

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Quote:

Originally Posted by Three6GMC

... but me I would just order some correct length push rods. You might could get away with it but risk messing something up for a cheap part like that isnt worth it to me. Do it right the first time.

+1. Like said, best way to be sure would be to grab a pushrod length checker. LS7 lifters are ~$175, & if I'd done heads, I woulda used em.

Quote:

Originally Posted by blazinblue

Update, well we now have bad valve-train noise with 7.375

heads suppose to be milled .030, using stock head gaskets and stock lifters. dunno whats wrong? freaken comp 7.375 look longer than the stock pushrods, im clueless now!

7.4 was what most consider stock, or near that. Myself, I was thinkin 7.35" PRs would work. The LS6 heads use a small base circle cam. I thought used a different length valve too, but that may be cause of a small base circle cam. Not sure on when u combine LS6 heads w/. different cam other than LS6 cam. Bottom line - verify.

Also, extra noise, increased action of cam will do that for ya; it did for me. Sounds like a sewing machine, right?!? Took some gettin used to, & it still bugs the **** outta me, but oh well. It's a tradeoff.