PAC Racing Springs Mini 8 Degree Valve Lock - 8 mm Valve Stem - 0.050 in More Height - Black Oxide (Set of 16) SS4500-1CN 3/8-24 in Thread

3/8-24 in Thread

the Eibach SPORTLINE-KIT has you covered

1955-1974 Ford Thunderbird

needs headers

PAC Racing Springs Mini 8 Degree Valve Lock - 8 mm Valve Stem - 0.050 in More Height - Black Oxide (Set of 16) SS4500-1CN 3/8-24 in ThreadProduct Description: Valve Lock Mini 8 8 Degree 8 mm Valve Stem 0. 050 in More Height Steel Black Oxide 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