PAC Racing Springs 300 Series 10 Degree Valve Spring Retainer - 10 Degree - 1.122 in / 0.735 in OD Steps - Dual Spring - Chromoly (Set of 16) Brake Caliper Bracket 18-1/2 in Spline Length

18-1/2 in Spline Length

1970-1997 Pontiac Firebird

6 Modular 3-valve and 5

Many users use this that have two sizes of Braille Batteries - one for track and one for street

PAC Racing Springs 300 Series 10 Degree Valve Spring Retainer - 10 Degree - 1.122 in / 0.735 in OD Steps - Dual Spring - Chromoly (Set of 16) Brake Caliper Bracket 18-1/2 in Spline LengthProduct Description: Valve Spring Retainer 300 Series 10 Degree 1. 122 in 0. 735 in OD Steps Dual Spring Chromoly 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 and increasing weight from