COMP Cams 10 Degree Valve Spring Retainer - 1.100 in / 0.710 in OD Steps - 1.500-1.550 in Dual Spring - Set of 16 57800BK 4 in Butt Joint

4 in Butt Joint

Ensures optimum power output and throttle response

Stainless steel rear bumper with post

two chamber volumes (64cc and 72cc)

COMP Cams 10 Degree Valve Spring Retainer - 1.100 in / 0.710 in OD Steps - 1.500-1.550 in Dual Spring - Set of 16 57800BK 4 in Butt JointThese new Tool Steel Retainers from COMP Cams have a 10? angle and fit all stem sizes. Tool Steel Retainers provide the best of all valve train benefits: light weight, as well as exceptional strength and wear characteristics. Approximately 33% lighter than conventional chromemoly steel retainers and only 2 4 grams heavier than titanium (depending upon application), they are made from high grade Tool Steel, making them able to withstand even the most