Performance Valvetrain

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

PAC Racing Springs PAC-1395-16 valve springs. Features 1300 Series Circle Track dual spring with damper, 550 lb/in rate, 1.150 in coil bind, 1.574 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1354-16 valve springs. Features 1300 Series Drag Race dual spring design, 1015 lb/in rate, 1.230 in coil bind, 1.550 in OD, set of 16, ideal for drag racing applications.

PAC Racing Springs PAC-1207X-16 valve springs. Features RPM Series dual spring design, 433 lb/in rate, 1.000 in coil bind, 1.304 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1903-16 valve springs. Features Hot Rod Series dual spring design, 394 lb/in rate, 1.06 in coil bind, 1.459 in OD, set of 16, ideal for hot rod performance builds.

PAC Racing Springs PAC-1351-16 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-1344-16 valve springs. Features 1300 Series Circle Track dual spring design, 743 lb/in rate, 1.055 in coil bind, 1.570 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1297-16 valve springs. Features 1200 Series Circle Track dual spring with damper, 500 lb/in rate, 1.110 in coil bind, 1.539 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1335-16 valve springs. Features 1300 Series Drag Race dual spring design, 813 lb/in rate, 0.985 in coil bind, 1.300 in OD, set of 16, ideal for drag racing applications.

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 performance builds.

PAC Racing Springs PAC-1331-16 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-1238X valve spring. Features RPM Series dual spring design, 600 lb/in rate, 0.985 in coil bind, 1.274 in OD, fits GM LS-Series, each, ideal for performance builds.