Edelbrock · New
Edelbrock Crate Engine LS3 Long Block Only
MPN 46720 · Store SKU ede46720
Supplier stock checked 11/7/2026, 7:39:19 PM UTC. Adding a part does not reserve it.
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Product details
Edelbrock part #46720 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 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 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 Edelbrock part #46720 long block features a GM aluminum LS3 block with a forged and balanced Manley crankshaft, forged Manley H-Beam connecting rods and Manley forged aluminum pistons to create a 416 c.i.d LS3 stroker Torque: Upwards of 695 ft/lbs. when used with Edelbrock supercharger Horsepower: Upwards of 720 HP when used with Edelbrock supercharger Long Block only. Does not come with an induction system Cylinder Heads: GM with Edelbrock Valve Springs #5768 Camshaft: 215 Deg /247 Deg , .629/.656, 121 LSA Warranty: 2-year / Unlimited mileage CRATE ENGINE LS3 LONG BLOCK Rocker Arms: LS3, 1.7 ratio Displacement: 416 c.i.d. Pistons: Forged Aluminum Long Block Crate Engine Crankshaft: Forged 4340 Block: LS3 Aluminum Rods: Forged H-Beam Compression: 9.5:1
Manufacturer fitment & guides
- Chevrolet:Small-Block Gen IV LS3:416 (6.8L)
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- Freight shipping required.
- California Proposition 65: Y
