These Shaft Mount Aluminum Roller Rocker Arms from COMP Cams are designed for SBM V8 273-360 applications and have a 1.6 ratio. Mounted on an ultra-durable shaft, these rocker arms are made from a high quality aluminum alloy with a tensile strength of 80,000 psi. Needle bearing trunions allow valve spring pressures of up to 350 lbs. open pressure, making Aluminum Roller Rocker Arms a good choice for many street applications.
