So, i had a set of 289 heads built for my truck. They are 1965 289 heads with oversized valves put in. The machine shop said that they would be fine with a mild cam but not anything over .550 lift (i think thats what he said).

Anyway, will they clear with my stock 302 cam and roller rockers with a 1.7 lift ratio instead of the factory 1.6? The reason i am asking is due to the fact i already own a pair of 1.7 ratio rocker arms.

Thanks for any info!


ben