Yella Terra Pro Street Shaft Mount Rocker Arm - 1.70 Ratio - Roller Tip - GM LS-Series Sprint Car Tether King Pin Kit Severe duty exhaust valves are

Severe duty exhaust valves are made Degrees F XH-428 stainless steel which has double the tensile strength Degrees F imported valves at 1500 Degrees F

Y-Pipe Gasket

Endura Finish

Formulated To Control Unwanted Motion

Diameter - Steel

Yella Terra Pro Street Shaft Mount Rocker Arm - 1.70 Ratio - Roller Tip - GM LS-Series Sprint Car Tether King Pin Kit Severe duty exhaust valves areProduct Description: Rocker Arm Pro Street 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