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) Kingsnake capacity swivel D-Ring offers 360

capacity swivel D-Ring offers 360 rotation for maximum tie-down convenience

Requires custom tuning

Tested up to 250 Degrees F (121 Degrees C) and 30 PSI (2

Classic Drag Race

7 Quart System Capacity

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) Kingsnake capacity swivel D-Ring offers 360Product 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