COMP Cams 494" Valve Guide Cutter - Cuts Guide: .494" 24-VER-N-9 1979-1989 GMC P2500

1979-1989 GMC P2500

Ultra-High Flow EFI Regulator

Not recommended for 1998 and newer applications as most went to synthetic type fluid

particulates

After much exhaustive testing and refinement

COMP Cams 494" Valve Guide Cutter - Cuts Guide: .494" 24-VER-N-9 1979-1989 GMC P2500Most 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