LSX with Forged Internals Support More Boost!

For builders who want to stretch the performance of a turbocharged or supercharged combination, Chevrolet Performance’s LSX376-B15 is the foundation they need! Its durable, all-forged rotating assembly supports up to 15 pounds of boost. Our ratings of 473 hp and 444 lb.-ft. are only an indication for what the engine is capable of.

Additionally, the engine is topped off with high-flow, LSX-LS3 6-bolt rectangular-port heads to create an affordable foundation for supercharged and turbocharged combinations. We deliver the LSX376-B15 without an intake manifold and other accessories, allowing you to tailor the induction system and other features to suit the forced-induction setup of your choice.

Our horsepower and torque ratings are based on testing with the production-style, normally aspirated fuel injection system. The power you make with a supercharger or turbo will vary.

Specifications:

Power: 473 HP @ 6000 RPM, 444 ft. lbs. of torque @ 5000 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.065” x 3.622”
Compression Ratio: 9.0:1
Recommended Fuel: 87 Octane
Block: LSX Cast Iron with 6 bolt cross bolted main caps
Crankshaft: Forged Steel with 8-bolt flange
Connecting Rods: Forged Powdered Metal Steel
Pistons: Forged Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .560” Intake / .555” exhaust
Cam Duration @ .050”: 210 deg. Intake / 230 deg. Exhaust
Lobe Separation: 121
Cylinder Heads: Aluminum L92/LS3 style ports
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600
GM Recommended Torque Converter Stall 2400-2800

Engine Includes:

Harmonic Balancer Pulley
Timing Cover
Valley Cover

Engine Does NOT Include:

Oil Pan
Intake Manifold
Water Pump

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Chevy LS 376 473HP Long Block Crate Engine 19355575

Product Information

  • $8,499.97


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