PAC Racing Springs PAC-R511-16 valve spring retainers. Features 500 Series, 7-degree lock angle, 0.640 in OD step, beehive spring compatible, titanium, fits GM LS-Series, set of 16, ideal for...

PAC Racing Springs PAC-R316-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.880 in/0.640 in OD steps, 1.235 in OD, dual spring compatible, chromoly, fits GM LS7, set of 16,...

PAC Racing Springs PAC-R432-16 valve spring retainers. Features 400 Series, mini 8-degree lock angle, 0.890 in/0.600 in OD steps, dual spring compatible, titanium, fits LS springs PAC-1530 &...

PAC Racing Springs PAC-R450-16 valve spring retainers. Features 400 Series, mini 8-degree lock angle, 0.940 in/0.685 in OD steps, dual spring compatible, titanium, set of 16, ideal for performance...

PAC Racing Springs PAC-R532-16 valve spring retainers. Features 500 Series, mini 8-degree lock angle, 0.890 in/0.600 in OD steps, dual spring compatible, titanium, set of 16, ideal for performance...

PAC Racing Springs PAC-R632-16 valve spring retainers. Features 600 Series, mini 8-degree lock angle, 0.890 in/0.600 in OD steps, dual spring compatible, Pacaloy steel, set of 16, ideal for...

PAC Racing Springs PAC-R643-16 valve spring retainers. Features 600 Series, mini 8-degree lock angle, 0.640 in OD step, beehive spring compatible, Pacaloy steel, set of 16, ideal for performance...

PAC Racing Springs PAC-R650-16 valve spring retainers. Features 600 Series, mini 8-degree lock angle, 0.940 in/0.685 in OD steps, 1.250 in OD, dual spring compatible, steel with natural finish, set...

PAC Racing Springs PAC-1217X-16 valve springs. Features 1200 Series ovate beehive design, 308 lb/in rate, 0.965 in coil bind, 0.698 in/1.061 in OD, fits Ford Coyote, set of 16, ideal for performance...

PAC Racing Springs PAC-1211X-16 valve springs. Features RPM Series beehive design, 385 lb/in rate, 1.100 in coil bind, 0.906 in/1.290 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1282X-16 valve springs. Features RPM Series ovate beehive single spring, 400 lb/in rate, 1.544 in coil bind, 1.150 in/1.270 in OD, fits Ford 7.3L Godzilla, set of 16, ideal for...

PAC Racing Springs PAC-1901-16 valve springs. Features Hot Rod Series dual spring with damper, 492 lb/in rate, 1.130 in coil bind, 1.540 in OD, set of 16, ideal for hot rod performance builds.