what is the standard roller rocker on ford crate engines? Also can a 1.7 rocker fit with the same valve covers? Is there any HP gain by going to a 1.7? thanks for any info
i believe it comes with the 1.6 rockers and yes you can use the 1.7's which would increase lift and hp. you can also go with the 1.72 rockers for a little extra. all will clear but you might need to pull the baffles in the valve covers. it doesnt harm anything and some can clear without pulling the baffles.