COMP Cams BRass Thrust Washer For 4100 - 4100BW

Brass Washer for 4100 Small Block Chevrolet Gear Drive System

Replacement Brass Washer for #4100 Gear Drive System

Precision machined, heat-treated billet Steel Gears for timing accuracy and durability. Unique design eliminates timing movement throughout the rpm range. Ready-to-install kit, including bolts and lock plate, ideal for street performance Applications that desire a whining blower sound .