Mopar Chrysler BB 383 440 1.6 Stainless Steel Roller Rocker Arms W/ Hardware Speedmaster pulley systems work with

Speedmaster pulley systems work with any type of cylinder head or manifold configuration

The belts use a fiberglass cord wound across the entire width of the belts to minimize stretching

This construction ensures superior strength

Available in plain or finned styles

Mopar Chrysler BB 383 440 1.6 Stainless Steel Roller Rocker Arms W/ Hardware Speedmaster pulley systems work withSpeedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals. All rockers feature large needle bearings or bushes and roller tips. For extreme high performance applications. They not only unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. These rockers are precision machined to ensure consistency and ratio accuracy and have a great