COMP Cams 4716 - Spring Seat Cutter, for GM Vortec Head

Most high performance engines today require the use of larger-than-stock diameter valve springs. This 1.320" Spring Seat Cutter for installing larger springs and hardened spring seats on GM Vortec Heads 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.

Cuts spring seat to 1.320" O.D.; Cuts guide to .630"; Cuts seat to install larger springs and hardened spring seats on GM Vortec heads; Other seat cutters available in many sizes from 1.350" to 1.810" O.D.;