I'm currently looking at Comp Cams Magnum steel roller rocker arms (Summit part # CCA-1417-16) for my 1989 L98.

Since these are 1.52 ratio, will they work with my stock heads & cam?

Is there any real gain with going from a ratio of 1.5 to 1.52?

Any info would be greatly appreciated.

Thank you!

 

I believe they are 1.52, and they are referred to as 1.5.

 

Stock rockers are 1.5, at least thats the calculation GM uses between lobe lift and valve lift.

Any difference? Probably not much and I wouldnt expect much, like 5hp. You will gain a little from less friction, a little from the ratio change, and a little from having accurate ratios rather than the factory fix+match of stamped steel.