Engine Specifications: Displacement: 416 c.i.d.; Horsepower: N/A; Torque: N/A ;Compression: 9.5:1; Block: LS3 Aluminum; Crankshaft: Forged 4340; Pistons: Forged Aluminum; Rods: Forged H-Beam; Camshafts: 215°/247°, .629/.656, 121 LSA; Rocker Arms: LS3, 1.7 ratio; Induction: E-Force Supercharger System #1540; Cylinder Heads: GM with Edelbrock Valve Springs #5768; Finish: Black powder coated ;Warranty: 2-year / Unlimited mileage * This is the same long-block used on our E-Force LS Supercharged crate engine that delivers 720 horsepower and 695 ft-lbs. of torque on 91 octane pump gas. It features a aluminum LS3 blockwith a forged and balanced Manley crankshaft, forged Manley h-Beam connecting rods and Manley forged aluminum pistons to create a 416ci LS3 stroker with 4.065" bore and 4 stroke. Its compact design allows for a seamless swap into most platforms; eliminating the need for modifications to your engine bay or hood. This long-block is a great foundation for starting any high performance forced induction LS based build. ** Top of supercharger measures 21.54" from crank centerline (special order with lower profile, Corvette, lid for additional 2" of hood clearance.) Oil pan dimensions: 2.625" tall at the front, sump measures 6.75" (front) to 7.75" (rear) high and 7.75" in length. See our web site for reference dimensions.