Cadillac 472 500 Shaft Mount Aluminum Roller Rocker Arm Set w/ Hardware Speedmaster valve locks are designed

Speedmaster valve locks are designed for stock or performance engines using 7 degree valve locks

Speedmaster Twin-Carb combine two four-barrel carburetors to achieve the best balance of drivability

Manufactured with lightweight aluminum technology

nitrided and black oxide coated for corrosion and wear resistance

Cadillac 472 500 Shaft Mount Aluminum Roller Rocker Arm Set w/ Hardware Speedmaster valve locks are designedSpeedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals. All rockers feature large needle bearings 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 looking anodized