COMP Cams 4100 - Hi-Tech Gear Drive System, Chevy SB

COMP Cams Hi-Tech Gear Drives include precision machined, heat-treated billet steel gears for timing accuracy and durability. Its unique design eliminates timing movement throughout the rpm range.

Precision machined, heat-treated billet steel gears for timing accuracy and durability; Unique design eliminates timing movement throughout rpm range; Ideal for street performance applications that desire a whining blower sound