However, DSR offers an upgrade to an aluminum engine block for a $7,000 upcharge. Custom CP Carrillo forged pistons, Callies forged crankshaft and H-beam connecting rods, ARP studs and bolts ...
The Cat1 Hurricrate engine features an aluminum block and cylinder head construction with a forged alloy steel crankshaft, forged steel I-beam connecting rods, and cast aluminum pistons compared ...