COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" Transmission Cooler Fittings 4-3/8 in OD Balancer

4-3/8 in OD Balancer

no special parts required

1-1/2" taper per foot

and endurance racing

COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" Transmission Cooler Fittings 4-3/8 in OD BalancerMost 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