COMP Cams 1.350" Spring Seat Cutter 4122LRGBK This simplifies hose and fitting

This simplifies hose and fitting connections for all applications

good upgrade for stock cam

Red under 940003

Valve Spring Retainer

Sensor Body Material - Brass

COMP Cams 1.350" Spring Seat Cutter 4122LRGBK This simplifies hose and fittingMost high performance engines today require the use of larger than stock diameter valve springs. This 1. 350" Spring Seat Cutter for installing single springs on GM Vortec Heads without hardened spring seats 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. This valve seat cutter allows you to enlarge the cylinder