PAC Racing Springs PAC-1280X-16 valve springs. Features RPM Series ovate beehive design, 386 lb/in rate, 1.181 in coil bind, 1.077 in/1.282 in OD, fits GM 604 crate motor, set of 16, ideal for performance builds.
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...
PAC Racing Springs PAC-1218-16 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...
PAC Racing Springs PAC-R335-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.940 in/0.680 in OD steps, 1.300 in OD, dual spring compatible, chromoly, fits GM LS-Series, set of...
PAC Racing Springs PAC-1222X-16 valve springs. Features RPM Series dual spring design, 425 lb/in rate, 1.055 in coil bind, 1.280 in OD, fits GM LS-Series, set of 16, ideal for performance builds.
PAC Racing Springs PAC-R455-16 valve spring retainers. Features 400 Series, 7-degree lock angle, 0.920 in/0.650 in OD steps, dual spring compatible, titanium, fits GM LS-Series, set of 16, ideal for...