PAC Racing Springs 10 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-LR8067-16 PTN6-1901BL are very similar and have

are very similar and have the greatest number of cars running at various tracks throughout the country

1967-1978 Buick Riviera

Impala and Biscayne models

Add the finishing touch to the drivers compartment of your Tri-Five Chevy with these beauties

PAC Racing Springs 10 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-LR8067-16 PTN6-1901BL are very similar and haveProduct Description: Valve Lock 10 Degree 5 16 in Valve Stem Standard 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 traditional