Ferrea 5000 Series Hi Performance Exhaust Valve - SB Chevy - 1.500", 11/32" Stem Diameter, 4.935" Overall Length - (Set of 8) Hose Clamp Pliers 1986-1998 Mercury Grand Marquis

1986-1998 Mercury Grand Marquis

Heat Screen features a thermal barrier on one side made of a superior reflective aluminized mylar surface

including four-corner idle adjustment on all models

Works with stock and aftermarket front control arms

Ferrea 5000 Series Hi Performance Exhaust Valve - SB Chevy - 1.500", 11/32" Stem Diameter, 4.935" Overall Length - (Set of 8) Hose Clamp Pliers 1986-1998 Mercury Grand MarquisThe 5000 Series Valves have become the alternative for performance engine builders that use competitors "street" or "performance valve". These valves are produced in Ferrea's CNC centers allowing tight tolerances and cost effective design. They feature a one piece forging made from stainless steel, a special heat treatment process, hard chrome stems, and hard tip. Most applications are available in an undercut stem and dished head, while other