PAC Racing Springs 10 Degree Valve Lock - 11/32 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-LR8028-16 SB51203 Holley 4150 ModelsProduct Description:

Holley 4150 ModelsProduct Description:

All original equipment belts are retained

2008-2015 GMC Sierra

1970-1974 Chevrolet P20 Van

PAC Racing Springs 10 Degree Valve Lock - 11/32 in Valve Stem - Standard Height - Black Oxide (Set of 16) PAC-LR8028-16 SB51203 Holley 4150 ModelsProduct Description:Product Description: Valve Lock 10 Degree 11 32 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