PAC Racing Springs Mini 8 Degree Valve Lock - 11/32 in Valve Stem - 0.050 in More Height - Black Oxide (Set of 16) PAC-L8132-16 9017-5BRI1.375 -10AN / 7/8"-14 O-ring portsDerale

-10AN / 7/8"-14 O-ring portsDerale has been the leader in performance cooling for decades

GM B-Body 1972-81

Three 2-1/16 in Holes

Another great feature is that no rpm modules are needed

GM LS3 / L76 Fuel RailsAeromotive Inc

PAC Racing Springs Mini 8 Degree Valve Lock - 11/32 in Valve Stem - 0.050 in More Height - Black Oxide (Set of 16) PAC-L8132-16 9017-5BRI1.375 -10AN / 7/8"-14 O-ring portsDeraleProduct Description: Valve Lock Mini 8 8 Degree 11 32 in Valve Stem 0. 050 in More 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