- Engines & Components
- Engine - Assembled / Ready-to-Run
- Chevrolet Performance LSX376-B15 376ci/473HP Crate Engine
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
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.
LSX376-B15 376ci Engine
Chevrolet Performance 19434412 LSX-Series Gen-IV LSX376-B15 376 ci. Crate Engine for Boosted Applications
LSX376-B15 376ci Engine Kits
Chevrolet Performance 19434412K2 19417356 LSX376-B15 376ci Crate Engine Kit [Fuel-Injected]
Chevrolet Performance 19434412K3 19417356 LSX376-B15 376ci Crate Engine Kit [Carbureted]
Engine Install Kits
Chevrolet Performance 19434412K4 LSX376-B15 376ci Engine Install Kit
Chevrolet Performance 19434412K5 LSX376-B15 376ci Engine Install Kit
What Are Chevrolet Performance LSX376-B15 376ci/473HP Crate Engine Common Pros and Cons?
Chevrolet Performance crate engines are built with the best components available, providing long-lasting performance. The LSX 376 is capable of handling up to 15 pounds of boost with the included forged internal components. With 473 HP and 444 TQ, this engine also packs a strong punch in your car or truck. With an engine of this quality, the price is a significant investment, but a worthwhile one.
Which Chevrolet Performance LSX376-B15 376ci/473HP Crate Engine Are Best?
There is only one LSX376 6.2l ls3 crate engine Chevrolet Performance offers. JEGS does offer kits that include a retro-fit oil pan, engine controller, dipstick, intake manifold assembly, and other components.
How Much Does Chevrolet Performance LSX376-B15 376ci/473HP Crate Engine Cost?
The Chevrolet Performance 6.2L crate engine starts at around $10,500 for the base long-block and reaches to over $14,000, depending on available kit component options to help in completing installation.