Hawks Motorsports offers our clients this BP38321SP GM Small Block Compatible 383 C.I. Power Adder Engine - Short Block Plus - BluePrint Engines designed for builders looking for a strong high-performance short block foundation capable of supporting custom naturally aspirated or forced induction combinations. This BluePrint Engines 383 C.I. Power Adder Short Block Plus provides a durable rotating assembly designed for customers who want to select their own cylinder heads, intake system, fuel delivery, ignition, and supporting performance components.

The BP38321SP combines GM Small Block compatibility with a 383 C.I. displacement platform and power-adder-focused internal components. The increased displacement provides improved torque potential compared with traditional 350 C.I. small block combinations, making it a strong foundation for street performance, restomod, racing, and custom engine builds.

The Short Block Plus configuration includes the assembled lower engine foundation while allowing builders to customize the top end and supporting systems based on their intended application. This configuration provides flexibility for customers developing turbocharged, supercharged, nitrous, or high-performance naturally aspirated combinations.

The power adder design incorporates upgraded internal components intended for higher-performance applications where additional cylinder pressure and horsepower capability are required. Final engine output will depend on selected cylinder heads, compression ratio, induction system, camshaft combination, tuning, and supporting components.

Vehicle-specific components including engine mounts, transmission compatibility, fuel system requirements, cooling system capacity, exhaust configuration, and accessory clearance must be verified before installation.

Key Features:

• SKU: BP38321SP
• BluePrint Engines GM Small Block compatible 383 C.I. Power Adder Short Block Plus engine
• Designed for custom high-performance engine builds
• Power adder capable configuration
• Short Block Plus format for custom top-end selection
• 383 C.I. displacement
• GM Small Block compatible architecture
• Forged rotating assembly components
• Forged steel crankshaft
• Forged pistons
• Heavy-duty connecting rods
• Hydraulic roller compatible block configuration
• Increased displacement compared with standard 350 C.I. combinations
• Designed for turbocharger, supercharger, nitrous, and performance applications
• Allows custom selection of cylinder heads, intake, fuel system, and ignition components
• Designed for street performance, restomod, and competition-oriented builds
• Requires additional components for complete engine assembly

Fitment Applications:

GM Small Block Compatible Applications

Designed for custom applications requiring a high-performance 383 C.I. small block foundation.

Common applications include:

Chevrolet Camaro

• Classic Camaro performance builds
• Camaro restomod applications
• Custom forced induction builds

Chevrolet Corvette

• Custom Corvette performance applications
• High-output engine conversion projects

Chevrolet Chevelle

• Chevelle street performance builds
• Custom engine upgrade applications

Chevrolet Nova

• Nova restoration and performance builds

Chevrolet C10 / GMC Truck Applications

• Classic truck performance builds
• Custom boosted truck applications

Custom Street Performance / Restomod Applications

• Vehicles requiring a customizable GM Small Block compatible 383 C.I. engine foundation

Verify fitment before ordering, especially when using modified vehicles, aftermarket components, custom engine mounts, forced induction systems, custom tuning, or non-original applications.

Installation Notes:

• Verify engine compatibility with vehicle chassis, engine mounts, transmission, accessory drive system, cooling system, and exhaust configuration before installation.
• This is a Short Block Plus configuration; cylinder heads, intake system, fuel system, ignition components, and additional components are required to complete the engine.
• Verify cylinder head compatibility and compression ratio requirements before assembly.
• Confirm piston-to-valve clearance during final engine assembly.
• Verify camshaft, valve train, and cylinder head compatibility.
• Forced induction applications require proper fuel system capacity, tuning, cooling system capability, and supporting components.
• Verify flexplate/flywheel requirements based on transmission application.
• Confirm transmission compatibility before installation.
• Additional installation components may be required depending on vehicle configuration.
• Test fit all components before final assembly and installation.