I have a friend that works at a gm dealership in the garage and he has acess to vortech rockers. He has the documentation to back it up, and he said that vortechs came with 1.6 rockers? Is this true or does he have bad info? Not rollers, but your still getting the increased lift. Thanks for the info. Prorac1

 

not sure on that but why don't you just put rollers rocker on it if your going to change them anyway.

 

There are aftermarket stamped steel 1.6 ratio rocker arms for the sbc, so why not GM also?

 

It could very well be true.

I think LS1s come with 1.7s?

But a roller rocker will still give you more hp because of less friction in the tip and base.

 

Thanks for the input guys. I know its cheesy but i can get these from a friend for next to nothing, so i figure why not......... right? Prorac1