GM Big Block Engine; 572 Cubic Inch; Automotive; 750 Horsepower/ 690 Foot Pounds of Torque; Cast Iron Block/ Aluminum Cylinder Heads; 10:1 Compression Ratio; 4.5 Inch Bore/ 4.5 Inch Stroke; Internally Balanced; With Cylinder Heads/ Forged Steel Crankshaft/ Forged Pistons/ Hydraulic Roller Camshaft/ 4 Bolt Main Block/ 1 Piece Rear Main Seal/ Forged H-Beam 6.535 Inch Connecting Rods/ Valve Covers/ Oil Pan/ Timing Cover/ Harmonic Balancer