Quote:
Originally Posted by Baba O'Riley
Stay with 1.5:1 rockers. The 1.65:1 rockers in most instances require grinding clearance for the pushrods.
The only 1.52:1 rockers are those crappy roller tip rockers from Comp Cams and you should steer clear of those.
Okay, thanks. PRW sells 1.52's as well for their stainless and aluminum RR's, that's why I asked.
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Just an FYI based on my experience with the 1.52 Comp roller tip rockers as well as a few friends I know that use them on other engines... they are definitely not "crappy", I have been using a set for 30+ years on 2 different engines with cams that are bigger lift & heavier springs than stock, there are no signs of any of the problems that have been mentioned... no blue color from heat, no problems with the grooved balls or roller tips, nothing at all in 30+ years of very hard use & countless 5500-6000 rpms runs, more abuse than most average street engines will see.
Ive read a few posts about some guys not liking them, but just like anything there are a small percentage of problems with almost any aftermarket part, even heard of H/S rockers having issues & needing to be rebuilt, no way to know how those rockers were treated to have problems, but for mine & others I know of they are quality parts that have worked great under abuse for over 3 decades.
I have another set I bought used on a stock cam pontiac engine for 15+ years, those also had/have no signs of any problems at all, these are all set up with adjustable lock nuts, proper lash & good geometry. If you want to use them dont let a handful of bad comments steer you away when theres probably 100k or more of them in use for decades working perfectly fine.