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Vehicle Info Needed19434412 LSX-Series Gen-IV LSX376-B15 376 ci. Crate Engine for Boosted Applications
Ships on 11/16/2026Free shipping
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EDELBROCK
Part Number : 350-28457
CHEVROLET PERFORMANCE
Part Number : 809-10465385
Chevrolet Performance 19434412 Crate Engine:
- Engine Type: LSX-Series Gen-IV Small-Block V-8
- Displacement (cu. in.): 376 (6.2L)
- Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)
- Block (P/N 19260095): LSX cast-iron with six-bolt, cross-bolted main caps
- Crankshaft (P/N 12603616): Forged steel
- Connecting Rods (P/N 12604857): Forged powdered metal
- Pistons (P/N 19259381): Forged aluminum
- Camshaft Type (P/N 12638426): Hydraulic roller
- Valve Lift (in.): 0.560 intake / 0.555 exhaust
- Camshaft Duration (@0.050 in.): 210° intake / 230° exhaust
- Cylinder Heads (P/N 19201805): LSX-LS3 rectangular port; with “as cast” 68-cc chambers/six-bolt attachment
- Valve Size (in.): 2.160 intake / 1.550 exhaust
- Compression ratio: 9.0:1
- Rocker Arms (P/N 12669995 int): Investment-cast, roll trunnion
- Rocker Arms (P/N 12681275 exh): Investment-cast, roll trunnion
- Rocker Arm Ratio: 1.7:1
- Recommended Fuel: Regular pump
- Maximum Recommended rpm: 6600
- Reluctor Wheel: 58X
- Balanced: Internal
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
For builders who want to stretch the performance of a turbocharged or supercharged combination, we've got just the foundation you need: Chevrolet Performance's new LSX376-B15, featuring a durable, all-forged rotating assembly to handle up to 15 pounds of boost. Chevrolet Performance's engineers started with the tough LS steel Bowtie standard-deck block, added a forged-steel crankshaft, forged rods, and forged pistons, then topped off the short-block assembly with high-flow, rectangular-port LSX-LS3 six-bolt aluminum heads for supercharged and turbocharged combinations.
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The LSX376-B15 is delivered 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. It's perfect as an economical replacement for a late-model performer or a great choice to build a high-boost powerplant for a Pro Touring classic.
*Horsepower and torque ratings were derived by GM Engineering using a normally aspirated LSX376 with LS3 EFI system. Your power numbers may vary, based on induction system and componentry.
LSX376-B15 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: Forged steel
- Connecting Rods: Forged powdered metal
- Pistons: Forged aluminum
- Camshaft Type: Hydraulic roller
- Camshaft Lift: .560'' intake / .555'' exhaust
- Camshaft Duration (@.050 in.): 210° intake / 230° exhaust
- Cylinder Heads: LSX-LS3 rectangular port; with ''as cast'' 68cc chambers and 6-bolt attachment
- Valve Size: 2.160'' intake / 1.550'' exhaust
- Compression Ratio: 9.0:1
- Rocker Arms: Investment cast, roller trunnion
- Rocker Arm Ratio: 1.7:1
- Recommended Fuel: Regular pump (87 octane)
- Maximum Recommended RPM: 6600
- Reluctor Wheel: 58x
- Balanced: Internal
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