Product Description
The BluePrint BP4002CT1 GM 400ci Performance Crate Engine is a powerful, professionally assembled Chevrolet-compatible small-block V8 designed for automotive enthusiasts, classic vehicle restorations, performance builders, and custom automotive projects requiring substantial horsepower and dependable engine construction.
Producing an impressive 500 horsepower and 510 lb-ft of torque, this performance long block combines a high-strength cast-iron engine block with premium forged internal components, aluminum cylinder heads, and a hydraulic roller camshaft.
At the heart of the BP4002CT1 is a brand-new BluePrint high-strength cast-iron block, manufactured and machined in the United States. The block features four-bolt main construction, a one-piece rear main seal, and a 4.125-inch cylinder bore.
The engine uses a 3.750-inch stroke forged steel crankshaft, forged connecting rods, and forged pistons to provide a strong internal assembly suitable for the engine’s performance requirements.
Its 10.3:1 compression ratio works with precision-machined cylinder heads and a performance hydraulic roller camshaft to support the advertised 500HP output.
The BluePrint aluminum cylinder heads feature 64cc combustion chambers, 220cc intake runners, 2.08-inch intake valves, and 1.60-inch exhaust valves. These components are designed to support efficient airflow through the high-performance V8.
A hydraulic roller camshaft with .555-inch intake lift, .576-inch exhaust lift, and 236°/242° duration at .050-inch lift contributes to the engine’s performance characteristics.
The BP4002CT1 is supplied as a long block, making it particularly suitable for automotive builders who prefer to select their own intake manifold, carburetor, ignition components, and other external equipment.
The engine includes major assembled components such as the engine block, rotating assembly, cylinder heads, camshaft, timing cover, valve covers, oil pump, and oil pan.
Every BluePrint performance engine undergoes dynamometer testing, and the engine is supplied with documented testing results to demonstrate its advertised performance configuration.
For customers seeking a Chevrolet-compatible 400 cubic-inch V8 with a forged rotating assembly, aluminum cylinder heads, and 500 horsepower, the BluePrint BP4002CT1 provides an excellent foundation for professional automotive restoration and performance projects.
Key Features
500 Horsepower Performance
Delivers an advertised 500HP, providing substantial naturally aspirated power for compatible automotive applications.
510 lb-ft of Torque
Produces 510 lb-ft of torque, supporting strong performance throughout its intended operating range.
400 Cubic-Inch V8 Displacement
Features a Chevrolet-compatible 400ci small-block engine configuration.
Brand-New Cast-Iron Engine Block
Manufactured and machined in the USA with high-strength cast-iron construction.
Four-Bolt Main Design
Features a four-bolt main configuration for the engine’s high-performance assembly.
Forged Steel Crankshaft
Equipped with a BluePrint forged steel crankshaft featuring a 3.750-inch stroke.
Forged Pistons
Uses forged pistons matched to the performance rotating assembly.
Performance Aluminum Cylinder Heads
Includes BluePrint HP8103 aluminum cylinder heads with large intake and exhaust valves.
Hydraulic Roller Camshaft
Equipped with a performance hydraulic roller camshaft and roller lifters.
Dynamometer Tested
BluePrint tests the engine and provides documented performance results.
30-Month Manufacturer Warranty
Covered by BluePrint’s 30-month / 50,000-mile limited warranty, subject to manufacturer requirements.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | BluePrint Engines |
| Model Number | BP4002CT1 |
| Engine Category | Long Block Crate Engine |
| Engine Family | GM-Compatible Small Block V8 |
| Engine Displacement | 400ci |
| Cylinder Configuration | V8 |
| Horsepower | 500 HP |
| Torque | 510 lb-ft |
| Engine Block | BluePrint High-Strength Cast Iron |
| Block Manufacturing | USA |
| Main Bearing Configuration | 4-Bolt Main |
| Rear Main Seal | One-Piece |
| Bore | 4.125 Inches |
| Stroke | 3.750 Inches |
| Compression Ratio | 10.3:1 |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel, 5.700 Inches |
| Pistons | Forged |
| Crankshaft Balance | Internal Front / External Rear |
| Camshaft Type | Hydraulic Roller |
| Intake Camshaft Lift | .555 Inches |
| Exhaust Camshaft Lift | .576 Inches |
| Intake Duration @ .050 | 236° |
| Exhaust Duration @ .050 | 242° |
| Lobe Separation Angle | 110° |
| Cylinder Heads | BluePrint Aluminum HP8103 |
| Combustion Chamber | 64cc |
| Intake Runner Volume | 220cc |
| Exhaust Runner Volume | 67cc |
| Intake Valve Size | 2.080 Inches |
| Exhaust Valve Size | 1.600 Inches |
| Oil Capacity | 5 Quarts with Correct Filter |
| Oil Pump | Included |
| Oil Pan | Included |
| Timing Cover | Included |
| Valve Covers | Included |
| Fuel Recommendation | 91+ Octane |
| Warranty | 30 Months / 50,000 Miles |
Engine Block / Internal Configuration
| Component | Details |
|---|---|
| Engine Block | Brand-New BluePrint Cast Iron |
| Block Configuration | Chevrolet-Compatible Small Block |
| Displacement | 400ci |
| Bore × Stroke | 4.125″ × 3.750″ |
| Main Bearings | 4-Bolt Main |
| Rear Main Seal | One-Piece |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel, 5.7 Inches |
| Pistons | Forged |
| Compression Ratio | 10.3:1 |
| Crankshaft Balance | Internal Front / External Rear |
The forged rotating assembly and high-strength block provide a durable foundation for the engine’s rated performance.
Cylinder Head / Valvetrain Configuration
| Component | Details |
|---|---|
| Cylinder Head Manufacturer | BluePrint Engines |
| Cylinder Head Model | HP8103 |
| Cylinder Head Material | Aluminum |
| Combustion Chamber | 64cc |
| Intake Runner | 220cc |
| Exhaust Runner | 67cc |
| Intake Valve Diameter | 2.080 Inches |
| Exhaust Valve Diameter | 1.600 Inches |
| Camshaft | Hydraulic Roller |
| Intake Valve Lift | .555 Inches |
| Exhaust Valve Lift | .576 Inches |
| Intake Duration | 236° @ .050 |
| Exhaust Duration | 242° @ .050 |
| Lobe Separation | 110° |
| Roller Lifters | Included |
Fuel / Intake Configuration
| Component | Details |
|---|---|
| Fuel Delivery Configuration | Carbureted Engine Application |
| Intake Manifold | Not Included |
| Carburetor | Not Included |
| Fuel Recommendation | 91+ Octane |
| Mechanical Fuel Pump Provision | Yes |
| EGR Compatibility | Not for EGR |
| Recommended Intake System | Compatible GM Small Block Performance Intake |
The BP4002CT1 is a long block rather than a fully dressed engine. The intake and fuel delivery components must be selected separately for the intended vehicle and engine configuration.
Ignition / Electrical Configuration
| Component | Details |
|---|---|
| Ignition System | Application-Specific |
| Distributor | Not Included |
| Spark Plugs | Not Included |
| Recommended Spark Plug | NGK BKR5E / 7938 |
| Spark Plug Gap | .035 Inches |
| Spark Plug Wires | Not Included |
| Computer | Not Included |
| Wiring Harness | Not Included |
Cooling / Lubrication Configuration
| Component | Details |
|---|---|
| Water Pump | Not Included |
| Oil Pump | Included |
| Oil Pan | Included |
| Oil Capacity | 5 Quarts with Correct Filter |
| Recommended Service Oil | BluePrint 10W-30 |
| Recommended Oil Filter | BPP51061 |
| Timing Cover | Included |
| Harmonic Balancer | Not Included |
| Cooling Fan Recommendation | 3,000 CFM or Greater |
Engine Balance / Drivetrain Configuration
| Component | Details |
|---|---|
| Crankshaft Balance | Internally Balanced Front |
| Rear Balance | Externally Balanced |
| Harmonic Balancer | Not Included |
| Recommended Balancer | BPP350 |
| Flexplate / Flywheel | Not Included |
| Rear Main Seal | One-Piece |
| Recommended Converter Stall | 2,400+ RPM |
| Transmission Compatibility | Application-Specific |
What’s Included
| Included Component | Details |
|---|---|
| BluePrint BP4002CT1 Long Block Engine | 1 Unit |
| High-Strength Cast-Iron Engine Block | Included |
| Forged Steel Crankshaft | Installed |
| Forged Connecting Rods | Installed |
| Forged Pistons | Installed |
| Hydraulic Roller Camshaft | Installed |
| Roller Lifters | Installed |
| BluePrint Aluminum Cylinder Heads | Installed |
| Valve Covers | Included |
| Timing Cover | Included |
| Oil Pump | Included |
| Oil Pan | Included |
| Dipstick | Included |
| Dynamometer Test Results | Included |
| Intake Manifold | Not Included |
| Carburetor | Not Included |
| Distributor | Not Included |
| Water Pump | Not Included |
| Harmonic Balancer | Not Included |
| Flexplate / Flywheel | Not Included |
| Spark Plugs and Wires | Not Included |
| Air Cleaner | Not Included |
| Warranty Coverage | 30 Months / 50,000 Miles |
Vehicle / Application Compatibility
The BluePrint BP4002CT1 400ci V8 is intended for compatible Chevrolet small-block performance applications.
| Application | Compatibility Considerations |
|---|---|
| Classic Chevrolet Cars | Engine Mounting and Transmission Compatibility |
| Chevrolet Muscle Cars | Cooling, Exhaust and Drivetrain Requirements |
| Classic Chevrolet Trucks | Engine Bay and Mounting Clearance |
| Custom Automotive Projects | GM Small Block Engine Configuration |
| Restoration Projects | Vehicle-Specific Installation Requirements |
| Performance Vehicle Builds | Supporting Engine and Drivetrain Components |
The aluminum cylinder heads feature raised exhaust ports compared with standard OEM configurations, which may affect exhaust fitment.
Ideal Applications
Classic Chevrolet Restoration: Suitable for compatible Chevrolet restoration projects requiring a high-performance small-block engine.
Muscle-Car Projects: A powerful long-block foundation for professionally planned performance vehicles.
Custom Automotive Builds: Allows builders to select their own intake, fuel delivery, ignition, and external components.
Classic Truck Restoration: Suitable for compatible Chevrolet truck projects where drivetrain and installation requirements are satisfied.
Professional Engine Building: Useful for automotive performance shops and restoration specialists seeking an assembled, dynamometer-tested long block.
Product Advantages
The BluePrint BP4002CT1 combines a brand-new American-made engine block, forged rotating assembly, high-performance aluminum cylinder heads, hydraulic roller camshaft, and documented dynamometer testing.
Its 500HP and 510 lb-ft output make it a substantial performance foundation for compatible GM small-block projects.
The long-block configuration also allows automotive builders to select additional external components appropriate for their particular vehicle requirements.
Safety & Installation Notice
Professional automotive installation is recommended. Engine mounting, transmission compatibility, cooling requirements, exhaust clearance, balancing components, and emissions regulations must be verified before purchase.
This performance engine is not intended for EGR applications and should not be assumed emissions-compliant for pollution-controlled street vehicles.
Warranty Information
30-Month / 50,000-Mile Limited Manufacturer Warranty
BluePrint Engines provides warranty coverage for eligible complete crate engines, subject to manufacturer registration, installation requirements, maintenance conditions, and exclusions.
Product Highlights
BluePrint BP4002CT1 GM 400ci Crate Engine 500 Horsepower 510 lb-ft Torque Brand-New Cast-Iron Engine Block Manufactured and Machined in the USA Four-Bolt Main Construction Forged Steel Crankshaft Forged Pistons and Connecting Rods 10.3:1 Compression Ratio BluePrint Aluminum Cylinder Heads Hydraulic Roller Camshaft Dynamometer Tested 30-Month / 50,000-Mile Manufacturer Warranty
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