Yella Terra Ultralite Shaft Mount Aluminum Rocker Arm - 1.70 Ratio - Roller Tip - GM LS-Series 33005P A direct replacement for all

A direct replacement for all 1955-56 Chevy passenger cars with six cylinder engines

Ideal for all types of racing

The 4 mil thick Tearoff is most commonly used in all pavement applications and has been proven at racing speeds over 125mph

These high-quality

The MWA muffler has NO internal packing or weak baffles

Yella Terra Ultralite Shaft Mount Aluminum Rocker Arm - 1.70 Ratio - Roller Tip - GM LS-Series 33005P A direct replacement for allProduct Description: Rocker Arm Ultralite Shaft Mount 1. 70 Ratio Roller Tip Aluminum GM LS Series Yella Terra has been designing, developing and manufacturing High Performance products in Australia for over 50 years! Over 60 Years of Performance Innovation! From humble beginnings in the early 1960s Dyno Dave Bennett and his staff have built Yella Terra into Australias leading manufacturer of Roller Rockers, Performance Cylinder Heads, Superchargers