Build LSX Boost on a Budget

Chevrolet Performance takes the economical LSX Bowtie standard-deck block, adds blower-friendly 9.0:1 forged pistons and combines them with the LS3’s high-flow, rectangular-port heads to create an affordable foundation for supercharged and turbocharged combinations.

The LSX376-B8 is designed for lower-boost applications, up to about 8 pounds. That’s suitable for most supercharger and turbo kits that are designed to be used with production-based applications. This engine is delivered without an intake manifold and other accessories to enable the installer to tailor the induction system to suit the blower or turbo system. Our 476 horsepower and 475 torque ratings are based on testing with the production-style, normally aspirated fuel injection system. Horsepower and torque will vary with a supercharger or turbo system.


Power: 476 HP @ 5900 RPM, 475 ft. lbs. of torque @ 4700 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: Nodular Iron with 6-bolt flange
Connecting Rods: Powdered Metal Steel
Pistons: Forged Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .551” Intake / .522” exhaust
Cam Duration @ .050”: 204 deg. Intake / 211 deg. Exhaust
Lobe Separation: N/A
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 476HP Long Block Crate Engine 19332312

Product Information

  • $7,446.29

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