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Chevrolet Performance Ls 376/515 Ls3 Long Block Crate Engines 19370412
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$4,800.00
The Chevrolet Performance LS 376/515 LS3 Long Block (19370412) is a high-performance LS3 small block V8 crate engine designed for muscle cars, street rods, and performance builds.
Delivering up to 515 horsepower, this long block provides reliable, factory-tested performance and a ready-to-install solution.
Condition: New
The LS 376/515 LS3 Long Block (Part #19370412) combines modern LS3 technology with Chevrolet Performance reliability, making it ideal for enthusiasts who want high horsepower and consistent performance.
This long block includes:
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Cylinder block
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Cylinder heads
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Rotating assembly
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Valve train
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Oil pan
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Timing cover
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Valve covers
Performance Overview:
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LS3 small block V8 architecture
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376 C.I.D. (6.2L) displacement
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515 horsepower output
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Fully assembled long block, ready for installation
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Ideal for muscle cars, street rods, and restomods
Key Features
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Chevrolet Performance LS3 6.2L small block V8
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Fully assembled long block
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Factory-tested for durability and high-performance
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High-flow cylinder heads and forged components
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Direct-fit for LS3-compatible Chevrolet vehicles
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Suitable for performance, restomods, and street builds
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Chevrolet Performance |
| Part Number | 19370412 |
| Engine Type | LS3 Small Block V8 |
| Configuration | Long Block |
| Displacement | 6.2L / 376 C.I.D. |
| Horsepower | 515 Hp |
| Torque | Approx. 470 lb-ft (Check Manufacturer) |
| Block Material | Aluminum |
| Cylinder Heads | Aluminum, high-flow |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel |
| Pistons | Forged Aluminum |
| Camshaft Type | Hydraulic Roller |
| Fuel System | Not Included |
| Fuel Type | Gasoline |
| Ignition System | Not Included |
| Cooling System | Water-Cooled |
| Condition | Brand New / Factory-Tested |
| Country of Origin | United States |
| Included Components | Cylinder block, heads, valve train, rotating assembly, oil pan, timing cover, valve covers |
| Recommended Use | Muscle cars, street rods, LS3 restomods, performance builds |
Compliance & Disclaimer
Horsepower and torque values should be verified with Chevrolet Performance specifications.
Professional installation and proper break-in procedures are recommended.
Not certified for emissions-controlled vehicles.
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Return Policy
FourToolz accepts returns within 30 days of delivery for items that are unused, in their original packaging, and include all accessories.
Customers are responsible for return shipping costs unless the product is defective or incorrectly shipped.
For detailed information, please review our full Return Policy or contact us at sales@fourtoolz.com.
by Farah Adelia
by Patrick Lee