Performance Valvetrain

PAC Racing Springs PAC-1364L-16 valve springs. Features 1300 Series Drag Race triple spring design, 840 lb/in rate, 1.115 in coil bind, 1.681 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1349-16 valve springs. Features 1300 Series Drag Race triple spring design, 689 lb/in rate, 1.130 in coil bind, 1.645 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1904-16 valve springs. Features Hot Rod Series dual spring design, 370 lb/in rate, 1.010 in coil bind, 1.290 in OD, set of 16, ideal for hot rod performance builds.

PAC Racing Springs PAC-1940-16 valve springs. Features Hot Rod Series dual spring with damper, 469 lb/in rate, 1.120 in coil bind, 1.555 in OD, set of 16, ideal for hot rod performance builds.

PAC Racing Springs PAC-1385-16 valve springs. Features 1300 Series Circle Track dual spring with damper, 525 lb/in rate, 1.145 in coil bind, 1.564 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1243-16 valve springs. Features 1200 Series Circle Track dual spring design, 550 lb/in rate, 1.150 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1351H-16 valve springs. Features 1300 Series Drag Race triple spring design, 752 lb/in rate, 1.160 in coil bind, 1.667 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1326-16 valve springs. Features 1300 Series Circle Track dual spring with damper, 663 lb/in rate, 1.150 in coil bind, 1.550 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1332-16 valve springs. Features 1300 Series Drag Race dual spring design, 863 lb/in rate, 1.160 in coil bind, 1.514 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1360-16 valve springs. Features 1300 Series Drag Race dual spring design, 895 lb/in rate, 1.190 in coil bind, 1.522 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1900-16 valve springs. Features Hot Rod Series single spring with damper, 376 lb/in rate, 1.1 in coil bind, 1.500 in OD, set of 16, ideal for hot rod performance builds.

PAC Racing Springs PAC-1204X-16 valve springs. Features RPM Series dual spring design, 369 lb/in rate, 1.000 in coil bind, 1.290 in OD, fits GM LS-Series, set of 16, ideal for performance builds.