GM Big Block Engine; 632 Cubic Inch; Electronic Fuel Injection; Automotive; 815 Horsepower/ 800 Foot Pounds of Torque; Cast Iron Block/ Aluminum Cylinder Heads; 11:1 Compression Ratio/ 4.6 Inch Bore/ 4.75 Inch Stroke; Internally Balanced; With Cylinder Heads/ Forged Steel Crankshaft/ Forged Pistons/ Hydraulic Roller Camshaft/ Base Dressed Long Block/ 4 Bolt Main Block/ 1 Piece Rear Main Seal/ Forged H-Beam 6.635 Inch Connecting Rods/ Valve Covers/ Oil Pan/ Timing Cover/ Harmonic Balancer/ Intake Manifold/ Holley Sniper 4500 EFI System/ Pro Billet Distributor/ Spark Plugs And Wires/ Thermostat And Thermostat Housing