Performance Valvetrain

PAC Racing Springs PAC-1245-16 valve springs. Features 1200 Series Circle Track dual spring design, 526 lb/in rate, 1.200 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1215-16 valve springs. Features 1200 Series ovate beehive design, 313 lb/in rate, 1.140 in coil bind, 0.885 in/1.290 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1212X valve spring. Features RPM Series single spring design, 380 lb/in rate, 1.180 in coil bind, 1.355 in OD, fits Small Block Chevy, each, ideal for performance builds.

PAC Racing Springs PAC-1371-16 valve springs. Features 1300 Series Circle Track dual spring design, 436 lb/in rate, 1.175 in coil bind, 1.374 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1330-16 valve springs. Features 1300 Series Drag Race dual spring design, 780 lb/in rate, 1.130 in coil bind, 1.500 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1206X-16 valve springs. Features RPM Series dual spring design, 409 lb/in rate, 1.000 in coil bind, 1.290 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1924-16 valve springs. Features Hot Rod Series dual spring with damper, 431 lb/in rate, 1.125 in coil bind, 1.540 in OD, set of 16, ideal for hot rod performance builds.

PAC Racing Springs PAC-R312-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.570 in OD step, beehive spring compatible, chromoly, fits Ford Modular, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R614-16 valve spring retainers. Features 600 Series, 10-degree lock angle, 1.140 in/0.735 in OD steps, dual spring compatible, Pacaloy steel, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1203-16 valve springs. Features 1200 Series Circle Track dual spring design, 610 lb/in rate, 1.115 in coil bind, 1.260 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1335 valve spring. Features 1300 Series Drag Race dual spring design, 813 lb/in rate, 0.985 in coil bind, 1.300 in OD, each, ideal for drag racing applications.

PAC Racing Springs PAC-1219X-16 valve springs. Features RPM Series beehive design, 340 lb/in rate, 1.100 in coil bind, 0.885 in/1.307 in OD, set of 16, ideal for high-performance builds.