Long Block #46720 GM LS3 416, GM LSA Head W/Edelbrock Springs, 1-Piece Rear Main

Edelbrock part #46720 is the same long-block used on our LS Supercharged crate engine that delivers 720 horsepower and 695 ft-lbs. of torque on 91 octane pump gas. It features an aluminum LS3 block with 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. Engine Specifications: Finish: Black powder coated; Displacement: 416 c.i.d.; Horsepower: Upwards of 720 HP when used with Edelbrock supercharger; Torque: Upwards of 695 ft/lbs. when used with Edelbrock supercharger; Compression: 9.5:1; Block: LS3 Aluminum; Crankshaft: Forged 4340; Pistons: Forged Aluminum; Rods: Forged H-Beam; Camshaft: 215 Deg /247 Deg , .629/.656, 121 LSA; Rocker Arms: LS3, 1.7 ratio; Cylinder Heads: GM with Edelbrock Valve Springs #5768; Warranty: 2-year / Unlimited mileage; Long Block only. Does not come with an induction system