COMP Cams Valve Spring Cups - Outside,Steel,.060" Thick,1.58 "O.D.,.640 "I.D.,1.475 "Spring O.D.,Set of 16 421999 This filter features 5-layers of

This filter features 5-layers of progressive

Self-contained groover has built-in temperature controls

no return line needed

It should be replaced when replacing the tailshaft seal or when a driveshaft failure has occurred

COMP Cams Valve Spring Cups - Outside,Steel,.060" Thick,1.58 "O.D.,.640 "I.D.,1.475 "Spring O.D.,Set of 16 421999 This filter features 5-layers ofThe old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines. COMP Cams offers a simple but effective solution to this problem. These Valve Spring Locators provide a thin, hardened steel alloy seat that will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the