PAC Racing Springs PAC-1200-16 valve springs. Features 1200 Series Circle Track single spring with damper, 450 lb/in rate, 1.100 in coil bind, 1.244 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1210X-16 valve springs. Features RPM Series single spring design, 290 lb/in rate, 1.150 in coil bind, 1.245 in OD, fits Small Block Chevy GM 602 crate engine, set of 16, ideal...

PAC Racing Springs PAC-1283-16 valve springs. Features 1200 Series ovate beehive design, 363 lb/in rate, 1.080 in coil bind, 0.845 in/1.250 in OD, fits Viper V10, set of 16, ideal for performance...

PAC Racing Springs PAC-1409X-16 valve springs. Features 1400 Series ovate beehive design, 436 lb/in rate, 1.115 in coil bind, 1.055 in/1.250 in OD, set of 16, ideal for high-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-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-1201X-16 valve springs. Features RPM Series single spring with damper, 540 lb/in rate, 1.115 in coil bind, 1.260 in OD, set of 16, ideal for high-performance builds.

PAC Racing Springs PAC-1201-16 valve springs. Features 1200 Series Circle Track single spring with damper, 540 lb/in rate, 1.115 in coil bind, 1.260 in OD, set of 16, ideal for circle track racing.

PAC Racing Springs PAC-1216L-16 valve springs. Features 1200 Series Circle Track single spring with damper, 454 lb/in rate, 1.130 in coil bind, 1.260 in OD, Race Saver Series spec, set of 16, ideal...

PAC Racing Springs PAC-1282LX-16 valve springs. Features RPM Series ovate beehive design, 400 lb/in rate, 1.544 in coil bind, 0.825 in/1.270 in OD, fits 7.3L Godzilla engine, set of 16, ideal for...

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.

PAC Racing Springs PAC-1333-16 valve springs. Features 1300 Series drag race dual spring design, 673 lb/in rate, 0.971 in coil bind, 1.274 in OD, set of 16, ideal for drag racing applications.