CLASS RACER FORUM - View Single Post - Rocker Arms---Does an official clarification exist

Myron Piatek · 10-23-2014, 03:23 PM

I was always under the impression that lobe lift lost through bad geometry, or whatever, can be made up by extra lift at the cam lobe. Rocker ratio remains per spec and as long as gross lift at the valve remains per spec., it's legal.

The use of OEM shaft style non-adjustable rocker arms on Mopars shouldn't even be a consideration considering the lower than advertised ratio and lack of durability. Even aftermarket ductile iron Crane, Isky, etc. are "off" of spec. but can be corrected. Aluminum roller rockers should be checked to be sure.

10-23-2014, 03:23 PM	#4
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,542 Likes: 34 Liked 138 Times in 51 Posts	Re: Rocker Arms---Does an official clarification exist I was always under the impression that lobe lift lost through bad geometry, or whatever, can be made up by extra lift at the cam lobe. Rocker ratio remains per spec and as long as gross lift at the valve remains per spec., it's legal. The use of OEM shaft style non-adjustable rocker arms on Mopars shouldn't even be a consideration considering the lower than advertised ratio and lack of durability. Even aftermarket ductile iron Crane, Isky, etc. are "off" of spec. but can be corrected. Aluminum roller rockers should be checked to be sure. __________________ LOCOMOTION Racing