Mopar Chrysler BB 383 440 1.5 Aluminum Roller Rocker Arms & Shafts (Ofset .650) These coils feature advanced bobbin

These coils feature advanced bobbin technology

straight ball-milled

O-ring seal and bolts are included

Made from CNC machined billet steel for heady duty applications

Speedmaster belt drives represent the ultimate in cam timing systems

Mopar Chrysler BB 383 440 1.5 Aluminum Roller Rocker Arms & Shafts (Ofset .650) These coils feature advanced bobbinSpeedmaster 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