Most high performance engines today require the use of larger than stock diameter valve springs. These tools from COMP Cams® will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter required the use of an arbor/pilot, which is available in three different sizes. These arbor/pilots also will work with the valve guide cutters used for shortening the guide for a high lift cam or installing a COMP Cams® Teflon seal for oil control.
Can Be Used With Both Spring Seat Cutters And Valve Guide Cutters
Limited 1 Year Warranty