What Does CC a Head Mean Combustion Chamber Sizing Deck Head Kevin Baxter Pro Twin Performa

1x INTAKE CUTTER HEAD 30 DEG. 1x INTAKE CUTTER HEAD 45 DEG. Engine Valve Restoration Carbide Tipped Seat Cutters Kit + 8 Guide Stems Boxed. 3 Angle Cut Valve Seat Cutter Set Carbide Tipped Performance Head Job.