COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" Transmission Cooler Fittings MegaShifter right hand drive

MegaShifter right hand drive

5/8 in Hex Drive

Tall polished aluminum valve covers are sold in pairs

and endurance racing

5 in W x 23 in H x 3 in D

COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" Transmission Cooler Fittings MegaShifter right hand driveMost high performance engines today require the use of larger than stock diameter valve springs. This 1. 550" Spring Seat 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. 550" outer diameter while reducing the