PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-L8074-16 1310B41 1966-1969 Chevrolet Bel Air Base

1966-1969 Chevrolet Bel Air Base CID 427 Naturally Aspirated GAS

1983-1999 Ford F-250

240 in Thick Rotor

Bubba Rope

This core features a flat tank design with a brazed aluminum construction that will provide exceptional thermal efficiency and durability

PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-L8074-16 1310B41 1966-1969 Chevrolet Bel Air BaseProduct Description: Valve Lock 8 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