Hawks Motorsports offers the BluePrint Engines PS6320CT GM Big Block Compatible 632 C.I. Pro Series Long Block Engine, the flagship naturally aspirated crate engine in the BluePrint Pro Series lineup. Delivering a dyno-proven 815 horsepower and 775 lb-ft of torque, this premium long block is built for serious street, Pro Touring, drag racing, and competition applications where maximum displacement and naturally aspirated performance are the priority. Featuring premium forged internals, BluePrint aluminum cylinder heads, and race-proven components, the PS6320CT provides an outstanding foundation for a custom induction and accessory package.

Built around a BluePrint high-strength cast iron tall-deck 4-bolt main block, the engine features a 4.600-inch bore, 4.750-inch forged steel crankshaft, 6.635-inch forged H-beam connecting rods, and forged pistons producing an 11.0:1 compression ratio. BluePrint aluminum cylinder heads and a hydraulic roller camshaft deliver exceptional airflow, excellent throttle response, and outstanding high-RPM horsepower while maintaining street-friendly drivability.

As a long block assembly, the PS6320CT includes professionally assembled cylinder heads, hydraulic roller valvetrain, timing cover, harmonic balancer, fabricated aluminum valve covers, and oil pan installed. The engine is shipped without an intake manifold, carburetor or EFI system, distributor, water pump, or front accessory drive, allowing builders complete flexibility when selecting their induction and accessory components. Every BluePrint Pro Series engine is precision machined, professionally assembled, dyno tested before shipment, and backed by BluePrint Engines' 30-Month / 50,000-Mile Warranty.

Key Features:

• SKU: PS6320CT
• GM Big Block Compatible 632 C.I. Pro Series Long Block
• 815 Horsepower
• 775 lb-ft Torque
• Long block configuration
• BluePrint high-strength cast iron tall deck block
• Manufactured and machined in the USA
• 4-bolt main block
• 4.600" bore
• 4.750" stroke
• Forged steel crankshaft
• Forged 6.635" H-beam connecting rods
• Forged pistons
• 11.0:1 compression ratio
• BluePrint aluminum cylinder heads
• 2.300" intake / 1.880" exhaust valves
• Hydraulic roller camshaft
• Camshaft Specifications:
  • .698" Intake Lift
  • .698" Exhaust Lift
  • 272° Intake / 282° Exhaust Duration @ .050"
  • 110° Lobe Separation Angle
• Harmonic balancer installed
• Timing cover installed
• Fabricated aluminum valve covers
• Oil pan installed
• Internal engine balance
• 1-piece rear main seal
• Mechanical fuel pump provision
• Tall deck design (.400" taller than OEM)
• Dyno tested before shipment
• 30-Month / 50,000-Mile Warranty

Fitment Applications:

Designed for custom GM Big Block Chevrolet compatible applications, including:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet El Camino
• Chevrolet Corvette
• Chevrolet Impala
• Chevrolet C10, C20 & C30 Pickup
• Pro Touring builds
• Street/Strip vehicles
• Drag racing applications
• Competition vehicles
• Custom high-performance builds

Verify engine mounts, tall deck clearance, intake manifold compatibility, header clearance, oil pan clearance, and drivetrain compatibility before ordering.

Installation Notes:

• Long block assembly.
• Intake manifold not included.
• Carburetor or EFI system not included.
• Distributor not included.
• Water pump not included.
• Front accessory drive not included.
• Flywheel/Flexplate sold separately.
• Requires an intake manifold machined for a standard-length distributor.
• Tall deck block is approximately .400" taller and wider than a standard OEM big block.
• Premium 91-octane or higher fuel required.
• Professional installation and engine tuning are recommended.