Buy Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Base Long Block Crate Engines OnlineÂ
The Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Base Long Block Crate Engine is the gold standard for high-performance swaps, offering a perfect balance of modern reliability and raw American muscle. Originally the heart of the C6 Corvette and Fifth-Gen Camaro SS, this LS3 crate engine is now available as a versatile long-block solution for your next project.
Whether you are restoring a classic muscle car, upgrading a modern street machine, or looking for a dependable powerhouse for marine applications, the 6.2 ls3 crate engine delivers smooth, consistent power across the entire RPM range. This base long block includes the engine block, rotating assembly, cylinder heads, and valvetrain, providing a high-quality foundation that allows you to customize your intake and accessory drive systems to fit your specific needs.
Overview
- Brand: Chevrolet Performance
- Manufacturer’s Part Number: 19435106
- Part Type: Crate Engines
- Product Line: Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Base Long Block Crate Engines
- Summit Racing Part Number: NAL-19435106
- Crate Engine Family: Chevy LS
- Actual Engine Displacement: 6.2L/376
- Crate Engine Cylinder Head Material: Aluminum
- Engine Block Material: Aluminum
- Advertised Compression Ratio: 10.7:1
- Assembled: Yes
- Engine Balance: Internal
- Cam Style: Hydraulic roller, OE roller
- Rear Main Seal Style: 1-piece
- Intake Manifold Included: No
- Cylinder Heads Included: Yes
- Carburetor Included: No
- Throttle Body Included: No
- Distributor Included: No
- Oil Pan Included: Yes
- Valve Covers Included: Yes
- Timing Cover Included: Yes
- Water Pump Included: No
- Harmonic Balancer Included: Yes
- Flexplate Included: No
- Flywheel Included: No
- Air Cleaner Included: No
- Spark Plugs Included: No
- Spark Plug Wires Included: No
- Computer Included: No
- Wiring Harness Included: No
- Supercharger Included: No
- Remanufactured: No
- Quantity: Sold individually.
Technical Specifications
This LS3 6.2 crate engine is engineered with precision components designed for longevity and performance:
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Engine Type: LS-Series Small-Block V8
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Displacement: 376 Cubic Inches (6.2L)
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Horsepower: 430 HP @ 5900 RPM
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Torque: 425 lb-ft @ 4600 RPM
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Bore x Stroke: 4.065″ x 3.622″
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Block: Cast Aluminum with 6-bolt, cross-bolted main caps
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Crankshaft: Nodular Iron
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Connecting Rods: Powdered Metal
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Pistons: Hypereutectic Aluminum
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Cylinder Heads: Aluminum L92-style port; “high-flow” rectangular port
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Compression Ratio: 10.7:1
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Valvetrain: Overhead valve, two valves per cylinder
Chevrolet Performance LS3 6.2L 376 c.i.d. 430 hp long block crate engines use an impressive 10.7:1 compression ratio to put out 430 hp at 5,900 rpm and 425 lbs.-ft. of torque at 4,600 rpm. Based on the production LS3 engine, these engines use L92-style rectangular-port heads. They feature a cast aluminum engine block with a nodular iron crankshaft, powdered metal connecting rods, and hypereutectic pistons. The steel hydraulic roller camshaft has a .551 in. intake and .522 in. exhaust valve lift with 204 degrees intake and 211 degrees exhaust valve duration at .050 in. cam lift.
Long block crate engines also include:
- Â F-body style oil pan, pump, and pickup
- Harmonic balancer
- Â Front timing cover
- Oil Filter
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