Performance Valvetrain

PAC Racing Springs PAC-R514-16 valve spring retainers. Features 500 Series, 10-degree lock angle, 1.140 in/0.735 in OD steps, dual spring compatible, titanium, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R435-16 valve spring retainers. Features 400 Series, 7-degree lock angle, 0.940 in/0.680 in/0.680 in OD steps, dual spring compatible, titanium, fits GM LS-Series dual springs, set of 16, ideal for performance builds.

PAC Racing Springs PAC-L8087-16 valve locks. Features 7-degree lock angle, 7 mm valve stem, top lock, 3 radius groove, steel with black oxide finish, lash cap recess, set of 16, ideal for performance builds.

PAC Racing Springs PAC-L8086-16 valve locks. Features 7-degree lock angle, 7 mm valve stem, standard height, 3 radius groove, steel with natural finish, set of 16, ideal for performance builds.

PAC Racing Springs PAC-L8035-16 valve locks. Features 8-degree lock angle, 11/32 in valve stem, standard height, steel with black oxide finish, set of 16, ideal for performance builds.

PAC Racing Springs PAC-S114-16 valve spring retainers. Features inside design, 0.060 in thick, 1.450 in OD, 0.570 in ID, 0.700 in spring ID, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R364-16 valve spring retainers. Features 300 Series, 7-degree lock angle, 0.795 in OD step, beehive spring compatible, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-S106-16 valve spring retainers. Features inside design, 0.060 in thick, 1.550 in OD, 0.635 in ID, 0.700 in spring ID, chromoly, set of 16, ideal for performance builds.

PAC Racing Springs PAC-L8025-16 valve locks. Features 10-degree lock angle, 11/32 in valve stem, -0.050 height, steel with black oxide finish, no lash cap recess, set of 16, ideal for performance builds.

PAC Racing Springs PAC-R436-16 valve spring retainers. Features 400 Series, 10-degree lock angle, 1.125 in/0.800 in OD steps, dual spring compatible, titanium, 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 performance builds.

PAC Racing Springs PAC-LR8025-16 valve locks. Features 10-degree lock angle, 11/32 in valve stem, -0.050 height, steel with black oxide finish, recess lock style, set of 16, ideal for performance builds.