New from Speedmaster – the Chevy SBC 350 1.6 Ratio 3/8″ DNA Aluminum Roller Rocker Arm Set. These rockers are designed for superior durability and maximum strength. See more details below.
Speedmaster DNA roller rockers are the toughest and most innovative rockers we’ve ever made. Crafted from certified aircraft-quality, heat-treated aluminum, they’re matched to massive, precision-ground trunnions for superior durability, and optimized rocker arm geometry evenly distributes the load for maximum strength. DNA rocker arms also utilize oversized needle roller bearings for better load distribution and longer service life. Speedmaster Aluminum Stud-Mount Rockers can withstand valve spring loads up to 360Ibs, the extruded body has a tensile strength of over 60,000 PSI.
- Aircraft-quality heat-treated aluminum
- Precision-ground trunnions for superior durability
- Optimized rocker arm geometry evenly distributes the load for maximum strength