Oldsmobile 330 350 400 425 455 1.6 Ratio Aluminum Shaft Mount Rocker Arm Set They're machined from billet aluminum

They're machined from billet aluminum for lasting durability and good looks

The GM LS1 Modular Ram Air Intake Manifold was designed for high-performance applications where induction system height is not limited

now impeccably paired with FiTech's sophisticated computer technology

Get genuine Speedmaster stainless steel valves

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

Oldsmobile 330 350 400 425 455 1.6 Ratio Aluminum Shaft Mount Rocker Arm Set They're machined from billet aluminumSpeedmaster 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