Hawks Motorsports offers our clients this BP38318CT1 GM Small Block Compatible 383 C.I. Engine - 436 Horsepower - Long Block - BluePrint Engines designed for customers seeking a high-performance small block engine foundation with increased displacement and flexibility for custom installations. This BluePrint Engines 383 C.I. long block delivers 436 horsepower and 443 ft. lbs. of torque while combining GM Small Block compatibility, aluminum cylinder heads, hydraulic roller camshaft technology, and a customizable long block configuration for restoration, street performance, and custom vehicle builds.

The BP38318CT1 features a high-strength cast iron block, BluePrint aluminum cylinder heads, hydraulic roller camshaft, hypereutectic pistons, and a cast crankshaft. The 383 C.I. platform provides increased displacement while maintaining the familiar GM Small Block compatible architecture preferred for classic Chevrolet restorations, restomod projects, and performance applications.

The long block configuration provides the core engine assembly while allowing builders to select their preferred intake manifold, fuel delivery system, ignition components, accessory drive system, exhaust components, and other vehicle-specific hardware. This customizable format gives customers the ability to create a drivetrain combination matched to their specific vehicle and performance requirements.

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

Key Features:

• SKU: BP38318CT1
• BluePrint Engines GM Small Block compatible 383 C.I. long block engine
• Rated at 436 horsepower and 443 ft. lbs. torque
• Long block configuration for custom engine builds
• GM Small Block compatible architecture
• BluePrint aluminum cylinder heads
• High-strength cast iron block
• Hydraulic roller camshaft
• Hypereutectic pistons
• Cast crankshaft
• 4.000" bore
• 3.750" stroke
• 5.700" connecting rods
• 10.0:1 compression ratio
• 4-bolt main block design
• 1-piece rear main seal
• High volume oil pump
• Timing cover included
• Oil pan included
• BluePrint logo valve covers included
• Designed for restoration, street performance, and restomod applications
• 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. long block engine.

Common applications include:

Chevrolet Camaro

• Classic Chevrolet Camaro restoration and performance builds
• Custom Camaro restomod applications

Chevrolet Corvette

• Classic Corvette restoration and performance applications

Chevrolet Nova

• Chevrolet Nova street performance builds

Chevrolet Chevelle

• Chevrolet Chevelle restoration and performance applications

Chevrolet C10 / GMC Truck Applications

• Classic Chevrolet and GMC truck performance builds

Custom Street Performance / Restomod Applications

• Custom vehicles requiring a high-performance 383 C.I. engine foundation

Verify fitment before ordering, especially when using modified vehicles, aftermarket components, custom engine mounts, 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, accessory drive components, and exhaust components are not included unless specifically listed.
• Verify fuel delivery requirements and ignition compatibility before installation.
• Confirm flexplate/flywheel requirements based on transmission application.
• Verify transmission compatibility before installation.
• Confirm cooling system capacity and radiator compatibility.
• The cylinder heads feature raised intake ports compared with original equipment style heads; verify intake manifold and accessory clearance.
• Additional installation components may be required depending on vehicle configuration.
• Test fit all components before final installation.