Cadillac 472 500 Shaft Mount Aluminum Roller Rocker Arm Set w/ Hardware When building rear-ends for race

When building rear-ends for race cars or trucks

Manufactured with lightweight aluminum technology

Speedmasterª EFI systems give you everything you need to add powerful and efficient fuel injection to your vehicle

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

This one-piece billet steel flexplate offers the strongest gear teeth

Cadillac 472 500 Shaft Mount Aluminum Roller Rocker Arm Set w/ Hardware When building rear-ends for raceSpeedmaster 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