PAC Racing Springs 300 Series 7 Degree Valve Spring Retainer - 0.880 in / 0.640 in OD Steps - 1.235 in OD Dual Spring - Chromoly - GM LS-Series (Set of 16) 1426A04 Outlet adapters available in AN-08

Outlet adapters available in AN-08

1999-2019 Ford E-350 Super Duty

Constructed from 6061-T6 aluminum this spring-loaded stud girdle set for 7/16" stud Chevrolet 265-400 Small Block ties rocker studs together to properly locate them

Dual Shaft

PAC Racing Springs 300 Series 7 Degree Valve Spring Retainer - 0.880 in / 0.640 in OD Steps - 1.235 in OD Dual Spring - Chromoly - GM LS-Series (Set of 16) 1426A04 Outlet adapters available in AN-08Product Description: Valve Spring Retainer 300 Series 7 Degree 0. 880 in 0. 640 in OD Steps 1. 235 in OD Dual Spring Chromoly GM LS Series Set of 16 Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel