COMP Cams Super Lock 10 Degree Valve Spring Retainer - 10 Degree - 1.125 in / 0.745 in OD Steps - 1.500-1.550 in Dual Spring - Chromoly - Black Oxide - Set of 16 Clutch In some vehicle applications additional

In some vehicle applications additional performance benefits are available at high RPM by underdriving the accessories (slowing them down)

1/2 grooveKing Engine Bearings is a world class developer and manufacturer of engine bearings

2000+ stall recommended

1979-1981 GMC C1500 Suburban

The 12 GPM Hex Drive Pump must be driven by a 3/8" female hex

COMP Cams Super Lock 10 Degree Valve Spring Retainer - 10 Degree - 1.125 in / 0.745 in OD Steps - 1.500-1.550 in Dual Spring - Chromoly - Black Oxide - Set of 16 Clutch In some vehicle applications additionalPrecision machined from chromemoly steel then black oxided, these 10 degree retainers are designed specifically for 1. 500" 1. 550" O. D. valve springs. The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer