My new Cheetah has a 6.2 Bravo One, which for old motorheads is a stock bore 350 Chevy with a 400 crank which yeilds 377 cubic inches. It looks like a SBC, other than some Mercury Marine stuff on it. The question is, what version of the SBC is it? Can I get some Harland Sharp roller rockers and throw on it like every other SBC, or is there some special high-zoot rocker that's required? Will aluminum rockers hold up over time in the marine "always on" environment? Or, should I step up to the investrment cast steel rockers from Competition Cams? Will I see any results from a change like this?
Thanks!
Mike
You will need self aligning rocker arms. Crane gold, in the ratio of your choice are a good buy. Not sure if the Harland Sharp is available w/self aligning. Also the reinforcement web for the center bolt valve covers is a little tight. I had to tap cover past rockers and then it was fine. H.S. rockers are even wider so?
Rockers will hold up fine. As far as performance increase, I have done a couple sbc's (w/144 blowers) and it was zero speed increase from just the rockers.