Performance Valvetrain

PAC Racing Springs PAC-S103-16 valve spring retainers. Features inside design, 0.060 in thick, 1.550 in OD, 0.575 in ID, 0.770 in spring ID, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R619-16 valve spring retainers. Features 600 Series, 8-degree lock angle, 1.140 in/0.735 in OD steps, 1.450 in OD, dual spring compatible, Pacaloy steel, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1220X-16 valve springs. Features RPM Series beehive design, 370 lb/in rate, 1.210 in coil bind, 1.000 in/1.445 in OD, set of 16, ideal for high-performance builds.

PAC Racing Springs PAC-S117-16 valve spring retainers. Features inside design, 0.060 in thick, 1.550 in OD, 0.575 in ID, 0.730 in spring ID, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R334-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.850 in/0.600 in OD steps, dual spring compatible, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1201 valve spring. Features 1200 Series Circle Track single spring with damper, 540 lb/in rate, 1.115 in coil bind, 1.260 in OD, each, ideal for circle track racing.

PAC Racing Springs PAC-1202-16 valve springs. Features 1200 Series Circle Track dual spring design, 540 lb/in rate, 1.100 in coil bind, 1.244 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-R565-16 valve spring retainers. Features 500 Series, 10-degree lock angle, 1.215 in/0.865 in/0.630 in OD steps, 1.620 in OD, triple spring compatible, titanium, set of 16, ideal for performance builds.

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 performance builds.

PAC Racing Springs PAC-1255X-16 valve springs. Features RPM Series ovate beehive design, 408 lb/in rate, 1.220 in coil bind, 0.990 in/1.445 in OD, set of 16, ideal for high-performance builds.

PAC Racing Springs PAC-1276X-16 valve springs. Features RPM Series beehive design, 409 lb/in rate, 1.070 in coil bind, 1.034 in/1.290 in OD, 1.040 top OD, set of 16, ideal for high-performance builds.

PAC Racing Springs PAC-S195-16 valve spring shims. Features 0.015 in thick, 1.500 in OD, 0.645 in ID, steel, set of 16, ideal for precise valve spring adjustments in performance builds.