The perfect match for SLP's LS1/LS6/LS2 performance valve springs, these new custom-designed titanium valve-spring retainers are built to withstand both increased spring pressures and higher-than-stock RPM. At only 9.5 grams each, they're a full 2.5 grams lighter than the OEM retainers. Compatible with stock valves. 

NOTE 1: Can be used with factory LS1/LS6/LS2 valve springs. 
NOTE 2: Designed for use with SLP 1.290" Performance Valve Spring Set (38-53003), for camshafts up to .600" lift.