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-1334-16 valve springs. Features 1300 Series drag race dual spring design, 740 lb/in rate, 0.973 in coil bind, 1.300 in OD, set of 16, ideal for drag racing applications.

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-1205X-16 valve springs. Features RPM Series dual spring design, 392 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-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-1219 valve spring. Features 1200 Series ovate beehive design, 340 lb/in rate, 1.100 in coil bind, 1.307 in OD, fits GM LS-Series, each, ideal for performance builds.

PAC Racing Springs PAC-1219-16 valve springs. Features 1200 Series ovate beehive design, 340 lb/in rate, 1.100 in coil bind, 0.885 in/1.307 in OD, fits GM LS-Series, set of 16, ideal for performance...

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.

PAC Racing Springs PAC-1208X-16 valve springs. Features RPM Series dual spring design, 460 lb/in rate, 1.000 in coil bind, 1.324 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1209X-16 valve springs. Features RPM Series dual spring design, 500 lb/in rate, 1.000 in coil bind, 1.324 in OD, fits GM LS-Series, set of 16, ideal for performance builds.

PAC Racing Springs PAC-1232X-16 valve springs. Features RPM Series ovate beehive design, 423 lb/in rate, 1.346 in coil bind, 0.900 in/1.345 in OD, set of 16, ideal for high-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.