Series Blackout Reaper Edition Base Dressed Carbureted Engine, delivering an intimidating 815 horsepower and 775 lb-ft of torque in a sinister, all-black performance package. Designed for builders who demand maximum cubic inches, aggressive styling, and uncompromising power, the Blackout Reaper 632 combines BluePrint Pro Series engineering with a stealth appearance built to dominate street, strip, and custom performance applications.

This massive 632 cubic inch big block features a high-strength cast iron tall-deck block, forged rotating assembly, aluminum cylinder heads, and hydraulic roller camshaft technology designed for serious horsepower and durability. The PS6320CTCX uses a 4.600-inch bore, 4.750-inch forged steel crankshaft, forged 6.635-inch H-beam connecting rods, and forged dome pistons to create a powerful foundation capable of handling high-RPM performance.

The Blackout Reaper Edition adds a custom stealth appearance while maintaining the proven Pro Series performance package. The base dressed carbureted configuration includes a single-plane intake manifold, carburetor-ready setup, Ready-to-Run distributor, fabricated valve covers, oil pan, harmonic balancer, and other essential components for a clean installation into your high-performance build.

Every BluePrint Pro Series engine is precision machined, professionally assembled, and dyno tested before shipment, giving builders a powerful and reliable GM Big Block compatible crate engine ready for the next level of performance.

Key Features:

• SKU: PS6320CTCX
• GM Big Block Compatible 632 C.I. Pro Series Engine
• Blackout Reaper Edition
• 815 Horsepower
• 775 lb-ft Torque
• Base dressed carbureted configuration
• Stealth black appearance package
• BluePrint high-strength cast iron block
• Manufactured and machined in the USA
• Tall deck block design
• Approx. .400" taller and wider than OEM-style big block dimensions
• 4-bolt main block
• 4.600" bore
• 4.750" stroke
• Forged steel crankshaft
• Forged 6.635" H-beam connecting rods
• Forged dome pistons
• 11.0:1 compression ratio
• BluePrint aluminum cylinder heads
• Hydraulic roller camshaft
• Camshaft Specifications:
  • .698" Intake Lift
  • .698" Exhaust Lift
  • 272° Intake Duration @ .050"
  • 282° Exhaust Duration @ .050"
  • 110° Lobe Separation Angle
• Single-plane aluminum intake manifold
• Carbureted fuel system
• Ready-to-Run distributor
• Fabricated valve covers
• Oil pan installed
• Oil pump installed
• Timing cover installed
• Harmonic balancer installed
• Spark plugs included
• Spark plug wires included
• Dipstick included
• Mechanical fuel pump provision
• Internally balanced front and rear
• Dyno tested before shipment

Fitment Applications:

Designed for custom GM Big Block Chevrolet compatible applications:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet Corvette
• Chevrolet El Camino
• Chevrolet Impala
• Chevrolet C10 / C20 / C30 Trucks
• Street rods
• Restomod builds
• Pro Touring vehicles
• Drag racing applications
• Street/strip builds
• Custom muscle cars
• High-performance project vehicles

Verify tall-deck clearance, engine bay dimensions, header compatibility, intake clearance, and drivetrain capability before installation.

Installation Notes:

• Base dressed carbureted engine assembly.
• Requires compatible carburetor, fuel system, and ignition wiring.
• Front accessory drive components are not included.
• Alternator, power steering pump, air conditioning compressor, and water pump sold separately.
• Tall-deck block requires clearance verification for some applications.
• Raised exhaust ports require compatible headers.
• Flywheel/flexplate sold separately.
• Recommended fuel: 91+ octane.
• Professional installation and tuning recommended.