T & D Machine Shaft Mount Aluminum Roller Rocker Arm - 1.70 Ratio - Big Block Chevy 21-23945 All MSD Extra Duty Distributor

All MSD Extra Duty Distributor Caps are designed with performance in mind and are molded from high quality

Crate Engine

1968 Chevrolet Chevelle Concours CID 350 Naturally Aspirated GAS

UMP / IMCA Modified

Includes the Rebel & Models With G/T Package

T & D Machine Shaft Mount Aluminum Roller Rocker Arm - 1.70 Ratio - Big Block Chevy 21-23945 All MSD Extra Duty DistributorProduct Description: Rocker Arm Shaft Mount 1. 70 Ratio Full Roller Aluminum Natural Big Block Chevy T&D Machine Products offers the shaft mount Roller Rockers that have become the choice of racers everywhere. T&D Shaft Roller Rocker Arms extruded 2024 aluminum Rocker Arms are CNC machined and have intricate oil galleries built in to direct oil from the pushrod to the shaft bearings and onto the roller tip. Adjuster screws are 7 16" and broached for a