Rocker Arms

[Travis Miller]

Originally Posted by Jeff Lee

You can run any ratio as all that is checked is lift as measured at the valve.

Not so, Jeff. The rocker arm ratio for Stock Eliminator engines are still listed in the Engine Blueprint Specifications on NHRA.com.

While it is true that the Tech Dept checks valve lift at the retainer, we can still check rocker arm ratio if we so desire. That could happen anytime we run across a set of rocker arms that do not appear to be correct. A racer was DQ'd a few years ago at Gainesville for using 1.6 rockers on a SBC even though the lift at the valve met the spec.

Travis

(Disclaimer: Opinions expressed by me on this forum are exactly that, my opinions.)