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Chevrolet Performance LSX376-B8 376ci/450HP Engine


Chevrolet Performance
Chevrolet Performance LSX376-B8 376ci/450HP Engine

A Factory-Built Foundation for Forced Induction!

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Boost on a budget! That's what you get with the LSX376-B8. 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 that runs on pump gas. The engine delivers exceptional air flow capability in a straight forward package even without any power adders. The LSX376 is built without an intake manifold so you can top it with a carburetor or production-style injection system or enables the installer to tailor the induction system to suit the blower or turbo system. 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.

The LSX376-B8 is delivered with only a dust cover instead of an oil pan so you can order what is correct for your application. Just one more way to keep the cost down by excluding
parts you can't use. Put this great engine in a vehicle originally equipped with an LS engine to give it a stronger bottom end for forced induction, or drop it into a street rod or classic muscle car body for a modern update.

*Horsepower and torque ratings were derived by GM Engineering using a normally aspirated LSX376 with LS3 EFI. Your power numbers may vary, based on induction system and componentry.

LSX376-B8 TECH SPECS:
  • Engine Type: LSX-Series Gen IV Small-Block V-8
  • Displacement: 376ci (6.2L)
  • Bore x Stroke: 4.065'' x 3.622'' (103.25mm x 92mm)
  • Block: LSX cast-iron with six-bolt, cross-bolted main caps
  • Crankshaft: Nodular iron
  • Connecting Rods: Powdered metal
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .551'' intake / .522'' exhaust
  • Camshaft Duration (@.050 in.): 204° intake / 211° exhaust
  • Cylinder Heads: LS3 rectangular port; with ''as cast'' 68cc chambers
  • Valve Size: 2.160'' intake / 1.590'' exhaust
  • Compression Ratio: 9.0:1
  • Rocker Arms: Investment cast, roller trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: 87 octane
  • Maximum Recommended RPM: 6600
  • Reluctor Wheel: 58x
  • Balanced: Internal
  • Note: Standard 24 month/50,000 mile warranty applies

    JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    GM Warranty


    4 Products
    Chevrolet Performance 19260831 - Chevrolet Performance LSX376-B8 376ci/450HP Engine
    809-19260831
    LSX376-B8 376ci Engine
  • 450 HP @ 5900 RPM
  • 444 ft/lbs TQ @ 4600 RPM
  • FREE
    SHIPPING
    & HANDLING!
    $5,636.99
    Ships
    Chevrolet Performance 19260831K - Chevrolet Performance LSX376-B8 376ci/450HP Engine
    809-19260831K
    LSX376-B8 376ci Engine Kit
    Includes:
  • LSX376-B8 Engine
  • Victor LSX Intake Manifold
  • 870cfm Street Avenger Carb
  • Muscle Car Oil Pan Kit
  • Ignition Controller & Coil Set
  • FREE
    SHIPPING
    & HANDLING!
    Easy Kits
    $7,896.82
    Ships
    Chevrolet Performance 19260831K2 - Chevrolet Performance LSX376-B8 376ci/450HP Engine
    809-19260831K2
    LSX376-B8 376ci Engine Kit
    Includes:
  • LSX376-B8 Engine
  • LS3 FI Intake Manifold Assembly
  • LS3 Engine Controller Kit
  • Muscle Car Oil Pan Kit
  • Ignition Coils
  • $189
    Easy Kits
    $8,428.88
    Ships
    Chevrolet Performance 19258270 - Chevrolet Performance LSX376-B8 376ci/450HP Engine
    809-19258270
    LS3 6.2L 430HP Engine Controller Kit
  • Fuel Injection Applications
  • FREE
    SHIPPING
    & HANDLING!
    $1,141.99
    Ships

    4 Products


    Race-Bred LSX Bowtie Block - High-Flow LS3 Cylinder Heads - Unique LSX376 Valve covers
    GM Performance Parts takes the LSX Bowtie block and combines it with the LS3's L92-style heads to create the LSX376 crate engine. This engine will be delivered without an intake manifold, oil pan (and other accessories), but can be fitted with either a carburetor or production-style injection system to make it suitable for your street rod, 1957 Chevy or 1971 Camaro.