PAC Racing Springs 10 Degree Valve Lock - 11/32 in Valve Stem - 0.050 in Less Height - Black Oxide (Set of 16) PAC-LR8025-16 Crank Pulley 1957-1991 Mercury Colony Park

1957-1991 Mercury Colony Park

2005-2017 Jeep Grand Cherokee

plus changeable idle air and high speed bleeds ΓÇóQuickLink (TM) secondary adjustment for fast and easy changing of opening rates ΓÇóAvailable in eight different sizes from 350-1

Fits 1963-1967 Chevrolet Corvette with Muncie (451) transmission

PAC Racing Springs 10 Degree Valve Lock - 11/32 in Valve Stem - 0.050 in Less Height - Black Oxide (Set of 16) PAC-LR8025-16 Crank Pulley 1957-1991 Mercury Colony ParkProduct Description: Valve Lock 10 Degree 11 32 in Valve Stem 0. 050 in Less 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