Cast-Iron Block; ZZ502; 502 Horsepower; 580 Foot Pounds of Torque; Includes Forged Steel Crankshaft/ Forged Steel Shot Peened Connecting Rods/ Forged Aluminum Pistons/ Hydraulic Roller Camshaft/ Aluminum Oval Port Cylinder Heads/ Holley 870 CFM Carburetor/ Aluminum Intake Manifold/ HEI Distributor/ Plug Wires/ Starter/ Water Pump/ Harmonic Balancer/ 14 Inch Flexplate