Hawks Motorsports offers our clients this BP38317CT1 GM Small Block Compatible 383 C.I. Power Adder Engine - 415 Horsepower - Long Block - BluePrint Engines designed for customers building a high-performance small block combination with forced induction capability. This BluePrint Engines 383 C.I. Power Adder long block provides a strong foundation for applications using nitrous, superchargers, or turbocharger systems while maintaining GM Small Block compatibility and customizable installation options. The BP38317CT1 delivers 415 horsepower and 430 ft. lbs. of torque and is engineered with upgraded internal components designed to support additional power applications.

The BP38317CT1 features a high-strength cast iron block, BluePrint aluminum cylinder heads, hydraulic roller camshaft, forged pistons, and forged steel crankshaft. The 383 C.I. platform combines increased displacement with a power-adder-ready rotating assembly, making it a strong choice for custom street performance, restomod, and competition-oriented builds where additional horsepower capability is desired.

The long block configuration provides the assembled engine foundation while allowing builders to select their preferred intake manifold, carburetor, EFI system, ignition components, accessory drive system, exhaust components, and vehicle-specific hardware. This allows the final combination to be tailored to the vehicle application and intended performance level.

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

Key Features:

• SKU: BP38317CT1
• BluePrint Engines GM Small Block compatible 383 C.I. Power Adder long block engine
• Rated at 415 horsepower and 430 ft. lbs. torque
• Designed for forced induction applications
• Compatible with nitrous, supercharger, and turbocharger combinations
• Long block configuration for custom builds
• High-strength cast iron block
• BluePrint aluminum cylinder heads
• Hydraulic roller camshaft
• Forged pistons
• Forged steel crankshaft
• 3.750" stroke
• 5.700" connecting rods
• 8.9:1 compression ratio
• Power adder-specific engine configuration
• Fuel recommendation: 87+ octane
• 4-bolt main block design
• 1-piece rear main seal
• High-performance street and custom build application
• Requires additional components for complete installation

Fitment Applications:

GM Small Block Compatible Applications

Designed for custom applications requiring a GM Small Block compatible 383 C.I. performance engine foundation.

Common applications include:

Chevrolet Camaro

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

Chevrolet Corvette

• Classic Corvette performance applications
• Custom Corvette engine conversions

Chevrolet Chevelle

• Chevelle street performance builds
• Custom high-performance applications

Chevrolet Nova

• Nova restoration and performance builds

Chevrolet C10 / GMC Truck Applications

• Classic truck performance applications
• Custom boosted truck builds

Custom Street Performance / Restomod Applications

• Vehicles requiring a power-adder-ready small block engine platform

Verify fitment before ordering, especially when using modified vehicles, aftermarket components, custom engine mounts, forced induction systems, transmission combinations, 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 long block engine configuration; additional components are required to complete installation.
• Intake manifold, carburetor or EFI system, distributor, ignition components, starter, alternator, accessories, and exhaust components are not included unless specifically listed.
• Forced induction components are not included and must be selected based on intended application.
• Verify compression ratio compatibility with boost level, fuel type, and tuning requirements.
• Confirm fuel system capacity and fuel delivery requirements before installation.
• Verify engine management and ignition requirements for forced induction applications.
• Confirm flexplate/flywheel requirements based on transmission application.
• Verify cooling system capacity and radiator requirements.
• Raised intake port aluminum cylinder heads require intake manifold and clearance verification.
• Additional installation components may be required depending on vehicle configuration.
• Test fit all components before final installation.