BluePrint PS6320CTC 632 Crate Engine – 815 HP Big Block Chevy

The Ultimate 632 BBC Crate Engine for Maximum Performance

The BluePrint PS6320CTC 632 crate engine delivers tire-shredding power in a fully dressed package that’s ready to transform your classic Chevelle, Camaro, hot rod, or custom build. As part of our extensive Big Block Chevy collection, this 10.3L/632 cubic inch V8 produces a staggering 815 horsepower and 800 lb-ft of torque—making it one of the most formidable naturally aspirated big-block crate engines in BluePrint’s Pro Series lineup .

Built on a new BluePrint tall deck cast iron block with a forged 4.750-inch stroke crankshaft and forged pistons, this 632 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 drag-race monster, or a show-stopping hot rod, this BluePrint 632 crate engine provides the foundation for an unforgettable driving experience.

What Makes the BluePrint 632 the Ultimate BBC Crate Engine?

The PS6320CTC is engineered for enthusiasts who want maximum horsepower and torque with complete turn-key convenience. BluePrint Engines has established itself as a leader in the crate engine market, and the Pro Series 632 represents their commitment to dyno-proven performance backed by an exclusive warranty .

Every BluePrint Pro Series engine is individually dyno-tested and ships with its own dyno sheet, guaranteeing the power you paid for. The rotating assemblies are balanced within 2 grams on a computerized balancer for smooth operation at high RPM . This “Dressed” variant includes a 1250 cfm Dominator carburetor, intake manifold, distributor, and all necessary components—making it a true turn-key solution .

632 Crate Engine Horsepower and Torque Figures

This big-block crate engine produces staggering output that puts most performance engines to shame:

• 815 horsepower – dyno tested and verified 

• 800 lb-ft torque – massive big-block torque for street and strip 

• 11.0:1 compression ratio – pump gas friendly 

• Hydraulic roller cam – streetable performance with excellent durability 

Complete 632 Engine Specifications

New BluePrint Tall Deck Cast Iron Block

The foundation of this BluePrint 632 crate engine is a new BluePrint cast iron block, manufactured and machined in the USA . Key block features include:

• Tall deck design – cylinder deck is approximately .400″ taller and wider than OEM block 

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

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

• 4.600-inch bore x 4.750-inch stroke (632 CID / 10.3L) 

• Internal engine balance 

• Mechanical fuel pump provision – yes 

Forged Rotating Assembly

The rotating assembly in the PS6320CTC is built for durability and high horsepower :

• Forged steel crankshaft – 4.750-inch stroke 

• Forged H-beam connecting rods – 6.635-inch length 

• Forged aluminum pistons – 11.0:1 compression 

• Internal engine balance – balanced within 2 grams 

BluePrint Aluminum Cylinder Heads

The BluePrint aluminum cylinder heads (119cc chamber) provide exceptional flow :

Pro Series Hydraulic Roller Camshaft Specifications

The PS6320CTC features a billet steel hydraulic roller camshaft :

What’s Included with Your PS6320CTC Dressed Crate Engine

The PS6320CTC comes as a fully dressed long block with the following components included :

Important Note: Water pump and flexplate/flywheel are NOT included . An internal balance flexplate or flywheel must be used . The engine has a 1-piece rear main seal; small block Chevy flexplates will not bolt to this engine .

PS6320CTC vs Other 632 Variants – Understanding the Difference

BluePrint offers the 632 Pro Series in multiple configurations :

The PS6320CTC is the “Dressed” variant – ideal for builders who want a complete engine with carburetor, intake, and distributor included .

632 Big Block Installation Notes and Considerations

Important Critical Clearance Warnings

Before installing your BluePrint PS6320CTC, review these critical notes :

• Tall deck clearance: The cylinder deck is approximately .400″ taller than OEM blocks. You must verify clearance of:

  • Exhaust manifolds/headers – the .300″ raised exhaust port requires verification

  • Shift linkage

  • Steering components

• Flexplate note: Requires an internally balanced flexplate. The 1-piece rear main seal small block Chevy flexplate will not bolt to this engine .

• Fuel recommendation: 91+ octane pump gas recommended ; race fuel may be required for extended wide-open throttle use .

Recommended Components for Build Completion

For a complete build, BluePrint recommends :

• Stall Converter: 3800-4200 RPM for automatic transmission 

• Fuel: 91+ octane pump gas (street use); 100+ octane for racing 

• Spark Plugs: NGK 4644/BKR7E 

• Spark Plug Gap: .035″ 

• Oil Capacity: 8 quarts with BPP51061 filter 

• Recommended Oil: 10W30, non-synthetic 

• Firing Order: 1-8-7-3-6-5-4-2 

Emissions Information

This engine is not for use in pollution-controlled vehicles . It is designed for pre-1976 street vehicles, off-road applications, or competition use only .

Break-In Recommendations

BluePrint Engines recommends :

• Use break-in oil or conventional 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 PS6320CTC with a comprehensive 30-month / 50,000-mile warranty .

632 Big Block Engine Swap – Compatibility and Considerations

The BluePrint 632 is a drop-in replacement for any vehicle originally equipped with a big-block Chevy, with the caveat of the tall deck clearance requirements. Compatible applications include :

• Chevrolet Camaro, Chevelle, Nova, Malibu

• Chevrolet Corvette

• Chevrolet C/K trucks (C10, C20, C30) 

• Street rods and custom builds

Important: The tall deck design may require modifications to intake manifold and distributor fitment, and clearance verification is mandatory.

BluePrint PS6320CTC FAQs

How much horsepower does the PS6320CTC produce?

The BluePrint PS6320CTC produces 815 horsepower and 800 lb-ft of torque .

What is the displacement and configuration of the PS6320CTC?

The PS6320CTC is a 632 cubic inch (10.3L) Big Block Chevy V8 with a 4.600-inch bore and 4.750-inch stroke. It features a cast iron tall deck block with aluminum cylinder heads and an 11.0:1 compression ratio .

What’s included with the PS6320CTC?

The PS6320CTC is a fully dressed long block including the block, cylinder heads, forged rotating assembly, 1250 cfm Dominator carburetor, intake manifold, MSD Pro Billet distributor, valve covers, oil pan, timing cover, harmonic balancer, spark plugs, and wires . Water pump and flexplate are not included.

What fuel does the 632 require?

91+ octane pump gas is recommended for street use . For racing or extended wide-open throttle use, race fuel (100+ octane) is required .

What warranty comes with this engine?

BluePrint Engines backs the PS6320CTC with a 30-month / 50,000-mile warranty – one of the best in the industry .

What is the price of the PS6320CTC?

The PS6320CTC is priced at approximately $17,699.00 USD . Contact NH Race Engine for current European pricing and availability.