Mopar Performance Shaft Mount Aluminum Rocker Arms Big Block R/RB

MOPAR Big Block Aluminum Roller Rocker Arms
- P/N 440-868

These beautiful NEW MOPAR Aluminum Shaft-Mount Roller Rockers are perfect for your Chrysler B/RB (383-400) applications. The rockers have a 1.5 ratio, and can accommodate a maximum spring diameter of 1.55 inches with an open spring rating of 650 lbs. MOPAR Shaft-Mount Rockers also reduce side-load on valve stems due to the longer pivot length of the arms themselves. They also increase valve train stability and mounting stiffness.

MOPAR Aluminum Shaft-Mount Roller Rockers, for LA Engines, unleash the horsepower in your ride. Each arm is precision machined to ensure consistency and ratio accuracy. The adjustable push rod tips allow for precise lash adjusting. 16 aluminum roller rockers, hardened shafts, and spacer hardware included. Use your stock bolts to attach the shaft to your cylinder head.