BluePrint BP4002CTC1DK 400 Crate Engine – 508 HP / 473 TQ Small Block Chevy

The Ultimate 400 Small Block Crate Engine for Serious Street Performance

The BluePrint BP4002CTC1DK 400 crate engine delivers race-inspired performance in a fully dressed package that’s ready to transform your classic Chevelle, Camaro, Nova, or hot rod. As part of our extensive Small Block Chevy collection, this 6.6L/400 cubic inch V8 produces an impressive 508 horsepower and 473 lb-ft of torque—making it one of the most formidable naturally aspirated small-block crate engines in BluePrint’s lineup .

Built on a new BluePrint cast iron 4-bolt main block with a forged crankshaft, forged pistons, and aluminum cylinder heads, this 400 Pro Series engine is dyno-tested and backed by an industry-leading 30-month/50,000-mile warranty . Whether you’re building a weekend warrior, a street machine, or a show-stopping classic, this BluePrint 400 crate engine provides the foundation for an unforgettable driving experience.

What Makes the BluePrint 400 the Ultimate Small Block Crate Engine?

The BP4002CTC1DK is engineered for enthusiasts who want maximum performance from a classic small-block platform. BluePrint Engines has established itself as a leader in the crate engine market, and this 400 Pro Series represents their commitment to dyno-proven performance backed by an exclusive warranty .

This “Dressed” variant includes a Holley 850 cfm carburetor, intake manifold, distributor, front accessory drive system, and all necessary components—making it a true turn-key solution .

400 Crate Engine Horsepower and Torque Figures

This small-block crate engine produces impressive output:

• 508 horsepower – dyno tested and verified 

• 473 lb-ft torque – strong mid-range power for street driving 

• 10.3:1 compression ratio – pump gas friendly 

• Hydraulic roller cam – low maintenance, excellent durability 

• Forged internals – forged crankshaft and pistons for durability 

Complete 400 Engine Specifications

New BluePrint Cast Iron Block

The foundation of this BluePrint 400 crate engine is a NEW BluePrint cast iron block, manufactured and machined in the USA . Key block features include:

• 4-bolt main caps for exceptional bottom-end strength 

• 1-piece rear main seal for leak-free operation 

• 4.125-inch bore x 3.750-inch stroke (400 CID / 6.6L) 

• Internal front / external rear engine balance 

• Mechanical fuel pump provision – yes 

• Passenger side dipstick 

• Drilled and tapped for clutch linkage 

Forged Rotating Assembly

The rotating assembly in the BP4002CTC1DK is built for durability and high horsepower :

• New BluePrint forged crankshaft – 3.750-inch stroke 

• Forged 5.700-inch connecting rods with 150,000 psi bolts 

• Forged pistons – 10.3:1 compression 

• Hastings moly rings for superior sealing 

BluePrint Aluminum Cylinder Heads

The BluePrint aluminum cylinder heads (HP8103) provide exceptional flow :

Hydraulic Roller Camshaft Specifications

What’s Included with Your BP4002CTC1DK Dressed Crate Engine

The BP4002CTC1DK comes as a fully dressed long block with the following components included :

Important Note: Flexplate/flywheel is NOT included and must be sourced separately . This engine requires an external balance flexplate/flywheel with a 1-piece rear main seal .

Installation Notes and Critical Considerations

Important Notes Before Installation

Before installing your BluePrint BP4002CTC1DK crate engine, review these critical notes:

• Initial timing: 10-16° at idle 

• Total timing: 32-34° at 3,500 RPM 

• Fuel requirement: 91+ octane recommended 

• Spark plug: NGK 7938 BKR5E, gap .035″ 

• Recommended oil: 10W30, non-synthetic 

• Recommended stall converter: 2400+ RPM 

• Oil capacity: 5 quarts with correct filter 

• Firing order: 1,8,4,3,6,5,7,2 

• Not for EGR 

Front Accessory Drive Note

The aftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake-mounted bosses . Verify fitment before installation.

Emissions Compliance

This engine is not for use in pollution-controlled vehicles .

Break-In Recommendations

BluePrint Engines recommends:

• Use break-in oil or conventional (non-synthetic) oil with zinc additive for the first 500 miles

• Avoid hard acceleration for sustained periods

• Periodically change engine speed while driving to help seat rings

• Monitor oil pressure and coolant temperature closely

• Change oil and filter after break-in period

Warranty

BluePrint Engines backs the BP4002CTC1DK with a comprehensive 30-month / 50,000-mile warranty .

400 Small Block Engine Swap – Compatibility and Considerations

The BP4002CTC1DK is a drop-in replacement for any vehicle originally equipped with a small-block Chevy. Compatible applications include :

• Chevrolet Camaro, Chevelle, Nova, Malibu

• Chevrolet Corvette

• Chevrolet and GMC trucks

• Street rods and custom builds

BluePrint BP4002CTC1DK FAQs

What is the horsepower and torque of the BP4002CTC1DK?

The BluePrint BP4002CTC1DK produces 508 horsepower and 473 lb-ft of torque .

What’s included with the BP4002CTC1DK?

The BP4002CTC1DK is a fully dressed long block including the block, aluminum heads, forged rotating assembly, Holley 850 cfm carburetor, intake manifold, distributor, front accessory drive system, valve covers, oil pan, timing cover, harmonic balancer, spark plugs, wires, and air cleaner. Flexplate/flywheel is not included .

What is the displacement and configuration of this engine?

The BP4002CTC1DK is a 400 cubic inch (6.6L) Small Block Chevy V8 with a 4.125-inch bore and 3.750-inch stroke. It features a cast iron block with aluminum heads and a 10.3:1 compression ratio .

What fuel does the BP4002CTC1DK require?

91+ octane fuel is recommended for optimal performance .

What warranty comes with this engine?

BluePrint Engines backs the BP4002CTC1DK with a 30-month / 50,000-mile warranty .

Is the BP4002CTC1DK the same as BP4002CTC1?

The BP4002CTC1DK includes a front accessory drive system, while the BP4002CTC1 (base dressed version) does not . Both produce the same 508 HP and 473 lb-ft of torque.