PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Titanium (Set of 16) PAC-L8123-16 JRP6PK-690HD Proven to cling to and

Proven to cling to and protect surfaces during initial start-up

oils and abrasion

1959-1996 Chevrolet Impala

Hooker holds to its claim of the winningest header in drag racing history

PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Titanium (Set of 16) PAC-L8123-16 JRP6PK-690HD Proven to cling to andProduct Description: Valve Lock 8 Degree 5 16 in Valve Stem Standard Height Titanium Natural 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 methods.