Proform Dual Idler Noisy Timing Gear Drive - Big Block Chevy 1130203 * #4275 and #4277 are

* #4275 and #4277 are designed to clear most roller rockers on factory cast iron and Edelbrock cylinder heads

120" wall thickness steel sleeve TIG welded and sanded into place

1964-1967 Chevrolet Malibu

720 in Depth

Proform Dual Idler Noisy Timing Gear Drive - Big Block Chevy 1130203 * #4275 and #4277 areProform High Performance Timing Gear Drives 66918C Includes Locking Plate Offset Cam Bushings Roller Cam Bearing Bronze Thrust Bearing Machined For Noise Easy To Install Incl. Locking Plate; Offset Cam Bushings Roller Cam Bearing; Bronze Thrust Bearing Applications include: Bel Air, Biscayne, Blazer, Blazer K5, Brookwood, C10 Pickup, C10 Suburban, C15 Pickup, C15 Suburban, C15 C1500 Pickup, C15 C1500 Suburban, C1500 Pickup, C1500 Suburban, C20 Pickup,