1.6 is very close to your stock ratio, on a .450 lift cam the 1.7 will push the valve .028" more than 1.6 rockers, and on a .500" lift cam the 1.7 will push the valve .031" more than 1.6 rockers..make sure your piston to valve clearances are within tolerance, i have a set of 1.7 RR's im looking to trade for some 1.6's for that very reason, and i dont think they'll fit under my stock valve covers without modification
~Mark~
Just FYI, an old school trick is to get the 1.7s off a 460....that's cheap power right there.
Are the 460 rockers stamped like the stock 5.0 rockers?
Jeff
Well I have a set of roller rockers 1.6 right now and cant use them because they hit my valve covers ecspecially in the middle up top where the center bolt on the cover is that recessed area or slotted area on the cover for the bolts that particular one in the top center sits right in between 2 of the rockers and actually caused one yo bind up on me and bent a push rod. So what do I need to do to make my covers fit besides take the baffle out.