COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" BR10122 Coil-Over Kit

Coil-Over Kit

Billet Specialties Tru Trac / V-Trac

Drag chutes only understand two things: weight and speed

NASCAR Large Bore

Brodix BB-3 Xtra O Heads

COMP Cams 1.550" Spring Seat Cutter - Cuts Guide: .630" BR10122 Coil-Over KitMost 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