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-R316-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.880 in/0.640 in OD steps, 1.235 in OD, dual spring compatible, chromoly, fits GM LS7, set of 16,...
PAC Racing Springs PAC-R511-16 valve spring retainers. Features 500 Series, 7-degree lock angle, 0.640 in OD step, beehive spring compatible, titanium, fits GM LS-Series, set of 16, ideal for...
PAC Racing Springs PAC-1211X-16 valve springs. Features RPM Series beehive design, 385 lb/in rate, 1.100 in coil bind, 0.906 in/1.290 in OD, fits GM LS-Series, set of 16, ideal for performance builds.
PAC Racing Springs PAC-R311-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.640 in OD step, beehive spring compatible, chromoly, fits GM LS-Series, set of 16, ideal for...
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...