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Atk High Performance Gm 350 330 Hp Stage 3 Long Block Crate Engines Hp291Pc
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$2.280$2.400 (-5%)
The ATK High Performance GM 350 Stage 3 Long Block (HP291PC) delivers 330 horsepower of reliable performance for GM vehicles and classic muscle cars.
Fully assembled and tested, this long block crate engine is ideal for street, track, or restoration projects, ensuring consistent performance and durability.
The GM 350 Stage 3 Long Block (Part #HP291PC) is designed for enthusiasts seeking a balance of power, reliability, and performance.
Featuring high-performance components and precise assembly, it provides a turnkey solution for upgrading GM vehicles.
Included Components:
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Engine block
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Cylinder heads
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Camshaft and valve train
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Rotating assembly (crankshaft, rods, pistons)
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Oil pan
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Timing components
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Valve covers
Performance Overview:
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350 C.I.D. (5.7L) V8 engine
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330 horsepower output
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Stage 3 high-performance configuration
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Fully assembled long block for easy installation
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Compatible with Chevrolet and GM vehicles
Key Features
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ATK High Performance Stage 3 GM 350 long block
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330 horsepower output
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Fully assembled and tested
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Includes all critical engine components for turnkey installation
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Engineered for street, track, or classic GM vehicle builds
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | ATK High Performance |
| Part Number | HP291PC |
| Engine Type | V8, GM 350 Stage 3 |
| Configuration | Long Block Crate Engine |
| Displacement | 350 C.I.D. / 5.7L |
| Horsepower | 330 Hp |
| Torque | Check Manufacturer Specs |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel |
| Pistons | Forged Aluminum |
| Camshaft Type | Stage 3 High-Performance Cam |
| 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 | Block, heads, camshaft, rotating assembly, valve train, oil pan, timing components, valve covers |
| Recommended Use | GM classic cars, street/track builds, restoration projects |
Compliance & Disclaimer
Horsepower and torque ratings should be verified with ATK High Performance specifications.
Professional installation and proper break-in procedures are recommended.
Not certified for emissions-controlled vehicles in all regions.
Questions & Answers
Have a question about this product? Ask below — we’ll reply as soon as possible.
Return & Refund Policy
- Return Period: Within 30 days of delivery.
- Condition: Unused, original packaging, all accessories included.
- Non-Returnable: Gift cards, personal care, custom or digital items, sale items.
- How to Return: Email support@fastoutboard.com for RMA and return address.
- Shipping: Customer pays unless item is faulty or incorrect.
- Refund: Processed within 5–10 business days after inspection.
Warranty
- Coverage: 1-Year limited warranty for manufacturing defects.
- Excludes: Misuse, wear, or unauthorized repair.
- Claim: Email proof and photos to support@fastoutboard.com.
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