ALL NEW! 100% NEW TOOLING! After almost Thirty years of offering our OEM forging 1.25 Rockers, we've decided to renew our tooling and forging dies. The new design incorporates an oil groove that not only prevents shaft galling but ensures oil makes it to the valve adjusting screw.
Over the years, metallurgy has improved so we contacted the Foundry Metallurgist's to see what they had to say. After much research and comparing notes, we made prototypes and performed our usual extensive testing on the dyno and in employee's vehicles, as well as a couple of well known race cars. After testing several different materials, we decided to use the same 4340 chromoly heat treat and QPQ Anti-wear coating as our 1.3 & 1.4 forged racing rocker arms. They have been in the Winner's Circle since introduction with a perfect score.
As of Fall 2013, we have added an oil groove on the inside diameter to prevent shaft galling and improve overall oil flow.
These 1.25:1 Ratio Rockers require the use of Racing Push Rod Tubes.