COMP Cams 1.810" Valve Spring Cutter HYPLXSM11M61FIA Aero rings are CNC laser-cut

Aero rings are CNC laser-cut out of high-grade steel to ensure a proper fit every time

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COMP Cams 1.810" Valve Spring Cutter HYPLXSM11M61FIA Aero rings are CNC laser-cutMost high performance engines today require the use of larger than stock diameter valve springs. This 1. 810" Spring Cup 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. This valve seat cutter allows you to enlarge the cylinder head spring pocket to 1. 810" outer diameter while reducing the