COMP Cams 4721 1.350 Spring Seat Cutter for Vortec Heads, .775 Guide

COMP Cams 4721 1.350 Spring Seat Cutter for Vortec Heads, .775 Guide

• Cuts spring seat to 1.350 inch O.D.
• Cuts guide to .775 inch
• Cuts seat to install larger springs and hardened spring seats on GM Vortec heads without hardened spring seats
• Other seat cutters available in many sizes from 1.350 inch to 1.810 inch O.D.

Most 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. 1.350" O.D. .775" Cuts Guide