Hawks Motorsports offers the BluePrint Engines PS6321CTC GM Big Block Compatible 632 C.I. Pro Series Base Dressed Carbureted Engine, an extreme-performance big block crate engine designed for builders demanding maximum naturally aspirated horsepower. Producing an incredible 1,015 horsepower and 830 lb-ft of torque, this 632 cubic inch Pro Series engine delivers race-inspired performance with premium components engineered for high-horsepower street, strip, and competition applications.

Built around BluePrint’s high-strength tall-deck GM Big Block compatible cast iron block, the PS6321CTC features a forged rotating assembly, Callies forged steel crankshaft, Mahle forged pistons, forged connecting rods, and Brodix SR20 CNC-ported cylinder heads. This combination provides the strength, airflow, and durability required to support four-digit horsepower levels.

The Base Dressed Carbureted configuration provides a performance-focused package while allowing builders flexibility with vehicle-specific accessories and customization. This engine includes a 1475 CFM Gen III Holley Ultra Dominator carburetor, BluePrint intake manifold, MSD Pro Billet distributor, solid roller camshaft, and professional-grade internal components designed for maximum power output.

With a massive 4.600" bore and 4.750" stroke, the PS6321CTC delivers enormous torque production and instant throttle response. Whether powering a drag car, Pro Touring build, classic muscle car, or extreme street machine, this BluePrint Pro Series 632 is built for enthusiasts who want uncompromising big-block performance.

Key Features:

• SKU: PS6321CTC
• GM Big Block Compatible 632 C.I. Pro Series Engine
• 1,015 Horsepower
• 830 lb-ft Torque
• Base Dressed Carbureted Configuration
• Designed for extreme street and race applications
• BluePrint Pro Series performance platform
• Manufactured and machined in the USA
• Tall deck cast iron block
• Approx. .400" taller and wider than OEM-style big block dimensions
• 4-bolt main block
• 1-piece rear main seal
• 4.600" Bore
• 4.750" Stroke
• Callies forged steel crankshaft
• Forged 6.635" connecting rods
• Mahle forged pistons
• Internally balanced rotating assembly
• 10.65:1 Compression Ratio
• Brodix SR20 CNC-ported aluminum cylinder heads
• Solid roller camshaft
• BluePrint intake manifold
• Holley Gen III Ultra Dominator 1475 CFM carburetor
• MSD Pro Billet distributor
• SFI harmonic balancer
• Moroso aluminum oil pan
• Spark plugs and wires included
• Timing cover installed
• Dyno tested before shipment

Performance Specifications:

Engine Output:

• Displacement: 632 C.I.
• Horsepower: 1,015 HP
• Torque: 830 lb-ft
• Compression Ratio: 10.65:1

Rotating Assembly:

• Crankshaft: Callies Forged Steel
• Stroke: 4.750"
• Connecting Rod Length: 6.635"
• Pistons: Mahle Forged
• Balance: Internally Balanced Front & Rear

Cylinder Heads:

• Manufacturer: Brodix
• Model: SR20 CNC Ported
• Combustion Chamber: 95cc
• Intake Runner Volume: 440cc
• Intake Valve: 2.400"
• Exhaust Valve: 1.800"

Camshaft Specifications:

• Type: Solid Roller
• Intake Lift: .873"
• Exhaust Lift: .861"
• Intake Duration @ .050": 293°
• Exhaust Duration @ .050": 304°
• Lobe Separation: 115°

Fitment Applications:

Designed for custom GM Big Block compatible performance builds:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet Corvette
• Chevrolet El Camino
• Chevrolet Impala
• Chevrolet C10 / C20 / C30 Trucks
• Drag racing vehicles
• Street/strip builds
• Pro Touring cars
• Classic muscle cars
• Custom hot rods
• High-horsepower show builds

Verify engine bay clearance, tall-deck dimensions, hood clearance, header compatibility, cooling requirements, fuel system capacity, and drivetrain strength before installation.

Installation Notes:

• Base dressed engine configuration allows customization of accessory systems.
• Requires compatible carbureted fuel system.
• Requires high-performance ignition system.
• Requires race-capable drivetrain components.
• Tall-deck block requires additional clearance verification.
• Raised exhaust ports require compatible headers.
• Recommended fuel:
  • 93+ octane for compatible street applications
  • 100+ octane race fuel for competition applications
• Professional installation, tuning, and drivetrain upgrades recommended.