Mopar Chrysler BB 383 440 1.6 Ratio Aluminum Roller Rocker Arms & Shafts The dual plane

The dual plane

race-bred styling will make bad intentions clear for drag race

They're 40 percent lighter

These drives fit under your stock timing cover and come complete with instructions

Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range

Mopar Chrysler BB 383 440 1.6 Ratio Aluminum Roller Rocker Arms & Shafts The dual planeSpeedmaster 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