Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
![GM LS376/480 6.2L LS3 Base Crate Engine Long Block Assembly [495 HP 473 ft.-lbs of TQ]](https://www.jegs.com/images/mini_750/800/809/809-19434646.jpg)
Vehicle Info NeededGM LS376/480 6.2L LS3 Base Crate Engine Long Block Assembly [495 HP 473 ft.-lbs of TQ]
Ships on Sep 08, 2026
Lowest Price GuaranteeLS376/480 6.2L Performance Crate Engine
Starting with the potent LS3 foundation, GM added the proven GM Hot Cam camshaft to inject extra performance to create the LS376/480 crate engine.
LS376/480 TECH SPECS
- Engine Type: LS-Series Gen IV Small-Block V-8
- Displacement: 376 ci (6.2L)
- Bore x Stroke: 4.065 in. x 3.622 in. (103.25 x 92 mm)
- Block: Cast aluminum with six-bolt, cross-bolted main caps
- Crankshaft: Nodular iron
- Connecting Rods: Powdered metal
- Pistons: Hypereutectic aluminum
- Camshaft Type: Hydraulic roller
- Valve Lift: .525 in. intake / .525 in. exhaust
- Camshaft Duration (@.050 in.): 219-degrees intake / 228-degrees exhaust
- Cylinder Heads: Aluminum L92-style port; 'as cast' with 68 cc chambers
- Valve Size: 2.165 in. intake / 1.590 in. exhaust
- Compression Ratio: 10.7:1
- Rocker Arms: Investment-cast, roller trunnion
- Rocker Arm Ratio: 1.7:1
- Recommended Fuel: Premium pump (92-octane)
- Maximum Recommended rpm: 6600
- Reluctor Wheel: 58X
- Balanced: Internal
Installation Notes:
- Will require intake manifold, throttle body, fuel rails, fuel injectors, exhaust manifolds, accessory drive, and an EFI controller
- LS3 is the same size and mounts the same as other LS-Series engines
- Includes a mid-wet sump oil pan installed. This oil pan will ONLY fit 2010-2015 Camaro SS/ZL1, 2012-2017 Caprice PPV, 2014-2017 Chevy SS, 2008-2009 Pontiac G8 chassis. THIS INSTALLED OIL PAN WILL NOT WORK WITH MUSCLE CAR LS ENGINE SWAPS. OIL PAN CHANGE IS REQUIRED FOR MUSCLE CAR LS ENGINE SWAPS.
Engine Break-In Procedure
Use only engine oil that meets dexos1 specifications. For track events or competitive driving, use Mobil 1 15W-50 engine oil. Fill the engine with oil and follow the proper engine priming procedure. Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.
Start the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at approximately 1000 RPM until normal operating temperature is reached. The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained high RPM accelerations. Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear.
Change the engine oil and filter. Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly. Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not expose the engine to extended periods of high load. Change the oil and filter again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.
19434646 supersedes 19432424, 19420384
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
GM Performance Hot Cam adds Heat to the LS3
Chevrolet engineers took a production LS3 6.2L and swapped the stock camshaft for the racing-inspired GM LS Hot Cam, which delivered a stunning 495 horsepower and 473 lb.-ft. of torque. The key to the power boost is the Hot Cam's duration, which allows the valves to stay open longer to draw in more air from the high air flow rectangular-port L92-style heads.
Show More
Unleash serious street performance with the Chevrolet Performance LS376/480 6.2L LS3 Engine—a factory-crafted powerplant that takes the proven LS3 foundation and adds a performance edge. Producing 495 horsepower and 473 lb-ft of torque thanks to a hotter camshaft, this engine is the perfect upgrade for hot rods, muscle cars, and custom builds needing modern reliability with aggressive performance.
Based on the legendary LS3 engine, the LS376/480 retains its strong aluminum block and heads for lighter weight and efficient heat management. But with the addition of a GM Performance camshaft, it delivers sharper throttle response and higher output—without sacrificing everyday driveability. Whether you're building a weekend cruiser or a street-legal track car, this engine delivers the best of both worlds.
For builders searching for an LS3 motor for sale, the LS376/480 offers the right mix of OEM engineering and enhanced performance. It's designed to integrate easily with GM controllers and accessories, helping streamline your swap and get you back on the road faster.
And if you're on the hunt for an LS3 6.2 engine for sale that brings both pedigree and punch, the LS376/480 is the ideal pick. Backed by Chevrolet's reputation for durability and innovation, it's a plug-and-play powerhouse for any serious project.
Whether you're chasing street dominance or reliable horsepower, the Chevrolet Performance LS376/480 delivers the performance, dependability, and thrill you expect from a modern GM V8.
The Chevrolet Performance LS376/480 6.2L LS3 Engine is a factory-engineered crate engine designed for enthusiasts who want elevated LS power with proven reliability. Built on the legendary LS3 platform and upgraded for increased output, the LS376/480 delivers an impressive 480 horsepower from its 6.2L (376 cubic inch) displacement. For builders seeking a high-performance crate engine that blends modern engineering with LS swap compatibility, this product group offers a serious upgrade over standard small block options.
Engineered by Chevrolet Performance, the LS376/480 retains the lightweight aluminum block architecture that made the LS platform famous while incorporating performance enhancements that improve airflow and overall power production. It’s an ideal solution for muscle car restorations, pro-touring builds, and custom street machines that demand strong, reliable horsepower in a compact package.
Performance Benefits & Key Features
At the heart of the Chevrolet Performance LS376/480 6.2L LS3 Engine is a combination of high-flow cylinder heads, a performance camshaft profile, and precision-calibrated valvetrain components designed to maximize airflow and combustion efficiency. The 480HP rating provides aggressive acceleration and broad torque delivery, making it equally capable on the street or at the track.
Buyers looking at this LS3-based crate engine typically prioritize horsepower ratings, torque capacity, aluminum construction, and electronic fuel injection compatibility. The aluminum block and heads help reduce overall vehicle weight while improving heat dissipation under demanding conditions. The upgraded camshaft enhances mid- and upper-RPM performance, delivering a more assertive power curve than standard LS3 configurations.
This engine is well-suited for street performance applications, weekend drag racing, autocross events, and pro-touring builds where drivability and durability are equally important. Its factory-backed engineering ensures consistent dyno-tested performance and long-term reliability.
Fitment, Compatibility & Applications
The LS376/480 is designed for vehicles configured for LS engine swap installations and GM-based platforms. Popular applications include classic Chevrolet Camaro, Chevelle, Nova, and C10 trucks, as well as restomod builds and custom street rods. Its compact dimensions and modern LS engine architecture make fitment straightforward with the proper mounts, wiring harness, and accessory drive systems.
Beyond classic muscle cars, this 6.2L V8 crate engine is also a popular choice for performance trucks and custom builds requiring strong, reliable power in a lightweight package. The widespread aftermarket support for LS compatibility makes integration into a wide range of vehicles achievable.
When you’re ready to upgrade your project with factory-engineered LS performance, explore the Chevrolet Performance LS376/480 6.2L LS3 Engine options at JEGS and choose a proven foundation for your next high-horsepower build.
