COMP Cams 494" Valve Guide Cutter - Cuts Guide: .494" 24-VER-N-9 used for P/N 12310

used for P/N 12310

Belt Included

1992-2001 Mercury Grand Marquis

After much exhaustive testing and refinement

Ultra-High Flow EFI Regulator

COMP Cams 494" Valve Guide Cutter - Cuts Guide: .494" 24-VER-N-9 used for P/N 12310Most high performance engines today require the use of larger than stock diameter valve springs. This . 494" Valve Guide Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor pilot, which are available in three different sizes Our valve guide cutter is designed to cut the outside diameter of the valve guide to . 494". The COMP Cams philosophy has