Hawks Motorsports offers the BluePrint Engines PS6321CTF GM Big Block Compatible 632 C.I. Pro Series Base Dressed Fuel Injected Engine, an extreme-performance crate engine engineered for builders demanding four-digit horsepower with the drivability and precision of modern electronic fuel injection. Producing an incredible 1,000 horsepower and 800 lb-ft of torque, this 632 cubic inch Pro Series engine combines premium race-proven components with a Holley Sniper Stealth EFI system for exceptional throttle response, tunability, and reliability.

Built around BluePrint's heavy-duty tall deck cast iron block, the PS6321CTF features a Callies forged steel crankshaft, Mahle forged pistons, forged 6.635-inch connecting rods, and Brodix SR20 CNC-ported aluminum cylinder heads. This premium rotating assembly is designed to withstand extreme horsepower while delivering outstanding durability for serious street, strip, and competition applications.

The Base Dressed Fuel Injected configuration includes a Holley Sniper Stealth 4500 EFI system, BluePrint intake manifold, MSD Pro Billet distributor, Moroso aluminum oil pan, SFI harmonic balancer, and ignition components. Electronic fuel injection provides instant starting, improved drivability, and precise fuel delivery while maintaining the raw performance expected from a naturally aspirated 632 cubic inch big block.

Whether powering a drag car, Pro Touring build, street machine, or custom muscle car, the PS6321CTF delivers uncompromising naturally aspirated performance with modern EFI technology. Every BluePrint Pro Series engine is precision machined, professionally assembled, balanced, and dyno tested prior to shipment.

Key Features:

• SKU: PS6321CTF
• GM Big Block Compatible 632 C.I. Pro Series Engine
• 1,000 Horsepower
• 800 lb-ft Torque
• Base Dressed Fuel Injected Configuration
• Holley Sniper Stealth 4500 EFI System
• BluePrint Cast Iron Tall Deck Block
• Manufactured and Machined in the USA
• Tall Deck Block (Approx. .400" Taller Than OEM)
• 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
• Holley Sniper Stealth 4500 EFI
• BluePrint Intake Manifold
• MSD Pro Billet Distributor
• Moroso Aluminum Oil Pan
• SFI Harmonic Balancer
• Timing Cover Installed
• Spark Plugs & Wires Included
• BluePrint Dipstick Included
• Dyno Tested Before Shipment
• Designed for Extreme Street and Competition Applications

Performance Specifications:

Engine Output

• Displacement: 632 C.I.
• Horsepower: 1,000 HP
• Torque: 800 lb-ft
• Compression Ratio: 10.65:1

Rotating Assembly

• Callies Forged Steel Crankshaft
• 4.750" Stroke
• Forged 6.635" Connecting Rods
• Mahle Forged Pistons
• Internal Balance Front & Rear

Cylinder Heads

• Brodix SR20 CNC Ported Aluminum Heads
• 95cc Combustion Chambers
• 440cc Intake Runners
• 2.400" Intake Valves
• 1.800" Exhaust Valves

Camshaft Specifications

• Solid Roller Camshaft
• .874" Intake Lift
• .867" Exhaust Lift
• 293° Intake Duration @ .050"
• 305° Exhaust Duration @ .050"
• 110° Lobe Separation Angle

Fitment Applications:

Designed for custom GM Big Block Chevrolet compatible applications including:

• 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 Builds
• Custom Muscle Cars
• Race-Oriented Applications

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

Installation Notes:

• Base dressed engine configuration allows custom accessory selection.
• Holley Sniper Stealth EFI requires proper fuel system, wiring, and ECU setup.
• Tall deck block is approximately .400" taller than a production GM big block.
• Brodix SR20 cylinder heads feature raised exhaust ports requiring compatible headers.
• Recommended fuel:
  • 93+ octane for street use
  • 100+ octane race fuel for racing or extended wide-open throttle operation
• Recommended engine oil: 20W50
• Professional installation and EFI tuning are strongly recommended.