Chevy SBC 350 15 Degree 1.6 Shaft Mount Roller Rocker Arms .450 Int .180 Exh. Suits: 1-149-004 and 1-149-005 Manifolds

Suits: 1-149-004 and 1-149-005 Manifolds

wall thickness and are formed from 4130 chromoly steel

Stay on track with PCEs 9 in

36 element Pro Mod Sprag and new large steel outer race to allow the use of more clutches

Speedmaster magnetic pickups are the same high-output assemblies that are currently found in all Speedmaster 8000 & 9000 series distributors

Chevy SBC 350 15 Degree 1.6 Shaft Mount Roller Rocker Arms .450 Int .180 Exh. Suits: 1-149-004 and 1-149-005 ManifoldsSpeedmaster 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 finish.