Precision CNC machined from 6061T6 billet aluminum Scalloped design allows maximum coolant flow to the head Provides strength to stock sleeves and prevents sleeve walk that can cause premature head gasket failure
Precision CNC machined from 6061T6 billet aluminum Scalloped design allows maximum coolant flow to the head Provides strength to stock sleeves and prevents sleeve walk that can cause premature head gasket failure