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Blueprint Engines Marine Gm 355 C.I.D. 365 Hp Dressed Long Block Crate Engines With Cast Components Mbp3550Ctc
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$4,200.00
The Blueprint Engines MBP3550CTC is a marine-grade GM 355 cubic inch small block dressed long block crate engine, producing approximately 365 horsepower and 400 lb-ft of torque.
Equipped with cast components and marine-specific modifications, this engine is designed for reliable performance, durability, and ease of installation in marine applications.
Condition: New
The Blueprint Engines Marine GM 355 C.I.D. 365 HP Dressed Long Block (MBP3550CTC) combines GM small block performance with marine-grade durability.
This fully dressed long block includes cylinder heads, valve train, rotating assembly, oil pan, timing cover, and marine-specific components, making it suitable for boats, watercraft, and performance marine applications.
Each engine is blueprinted, balanced, and dyno-tested in the USA to ensure consistent power and reliability under marine operating conditions.
Performance Overview:
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Factory dyno-tested output: approximately 365 HP and 400 lb-ft torque
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355 cubic inch (5.8 L) Chevrolet small block
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Fully dressed long block with cast components for marine reliability
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Hydraulic camshaft for smooth torque delivery
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Ideal for performance boats, marine restorations, and recreational watercraft
Key Features
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Marine-grade GM 355 C.I.D. small block V8 configuration
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Fully dressed long block with cast components
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Hydraulic camshaft for smooth and reliable operation
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Balanced and blueprinted rotating assembly for durability
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Factory dyno-tested for verified horsepower and torque
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Ready for marine performance installations
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Compatible with aftermarket marine intakes and fuel systems
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Blueprint Engines |
| Part Number | MBP3550CTC |
| Series | Marine GM 355 Dressed Long Block |
| Engine Type | Chevrolet Small Block V8 (Marine) |
| Configuration | Fully Dressed Long Block |
| Displacement | 355 Cubic Inches (5.8 Liters) |
| Horsepower (Factory Tested) | Approx. 365 HP |
| Torque (Factory Tested) | Approx. 400 lb-ft |
| Block Material | Cast Iron |
| Cylinder Heads | Cast Aluminum |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel |
| Pistons | Forged Aluminum |
| Camshaft Type | Hydraulic Roller |
| Compression Ratio | ~9.6:1 |
| Fuel System | Not Included |
| Fuel Type | Gasoline |
| Ignition System | Not Included |
| Cooling System | Water-Cooled (Marine) |
| Condition | Brand New |
| Country of Origin | United States |
| Included Components | Cylinder heads, valve train, rotating assembly, oil pan, timing cover, marine-specific components |
| Recommended Use | Performance boats, marine restorations, recreational watercraft |
Compliance & Disclaimer
All horsepower and torque values are approximate manufacturer dynamometer results.
Actual output may vary depending on intake, exhaust, and tuning setup.
This engine is designed specifically for marine and recreational performance use.
Professional installation and proper break-in procedures are recommended.
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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 Logan Bennett
by Mila Rahman