Hawks Motorsports proudly offers the BluePrint Engines PSLS37650CTF GM LS Compatible 376 C.I. Pro Series Engine, a street-ready LS performance crate engine designed for builders who demand modern LS reliability, strong horsepower, and custom swap flexibility. Delivering 525 horsepower and 460 lb-ft of torque, this Pro Series engine is ideal for restomods, street machines, Pro Touring builds, muscle cars, and custom LS swap applications.

At the heart of this engine is a BluePrint high-strength cast iron LSX-style block featuring increased deck thickness, reinforced webbing, extended cylinder skirts, improved water jacket design, and priority main oiling for added durability. The engine is topped with BluePrint LS3 aluminum cylinder heads and a BluePrint fabricated aluminum intake manifold, creating a combination that delivers excellent airflow, strong street performance, and a clean custom appearance.

The PSLS37650CTF features a 376 cubic inch displacement, 10.7:1 compression ratio, hydraulic roller camshaft, hypereutectic pistons, nodular iron crankshaft, and internally balanced rotating assembly. This package includes fuel injection components but does not include an ECU or wiring harness, allowing builders to select their preferred engine management system for their specific vehicle and tuning requirements.

Designed for enthusiasts building high-performance GM vehicles, this BluePrint Pro Series engine provides the perfect combination of LS swap versatility, reliability, and horsepower.

Key Features:

• Part Number: PSLS37650CTF
• GM LS Compatible Pro Series Engine
• 376 Cubic Inch Displacement
• 525 Horsepower
• 460 lb-ft Torque
• Base Dressed Configuration
• BPE Fabricated Aluminum Intake Manifold
• No ECU / Wiring Harness Included
• BluePrint High Strength Cast Iron LSX-Style Block
• LS3 Aluminum Cylinder Heads
• Hydraulic Roller Camshaft
• Hypereutectic Flat Top Pistons
• Nodular Iron Crankshaft
• Internally Balanced Rotating Assembly
• 10.7:1 Compression Ratio
• Fuel Injected
• Priority Main Oiling System
• 6-Bolt Main Design
• 1-Piece Rear Main Seal
• OEM LS3 Front & Rear Cover Compatible
• Includes Fuel Injectors and Fuel Rail
• Includes Drive-by-Wire Throttle Body
• Includes LS Swap Oil Pan
• Includes Water Pump
• Includes Harmonic Balancer
• Includes Timing Cover
• Includes Valve Covers
• Includes Coil Packs
• Designed for Custom LS Swap Applications

Engine Specifications:

General:

• Manufacturer: BluePrint Engines
• Part Number: PSLS37650CTF
• Engine Family: GM LS Compatible
• Series: Pro Series
• Configuration: Base Dressed
• Displacement: 376 C.I.
• Horsepower: 525 HP
• Torque: 460 lb-ft
• Compression Ratio: 10.7:1
• Fuel System: Electronic Fuel Injection
• ECU/Harness: Not Included
• Recommended Fuel: 91+ Octane

Block Specifications:

• BluePrint High Strength Cast Iron LSX-Style Block
• Bore: 4.0662"
• 6-Bolt Main Design
• Priority Main Oiling
• Increased Deck Thickness
• Reinforced Main Webbing
• Improved Water Jacket Design
• Extended Cylinder Skirt
• 1-Piece Rear Main Seal
• OEM LS3 Front & Rear Cover Compatible

Rotating Assembly:

• Nodular Iron Crankshaft
• Stroke: 3.622"
• Connecting Rod Length: 6.098"
• High Strength Rod Bolts
• Hypereutectic Pistons
• Flat Top Pistons
• Internally Balanced Front & Rear Assembly

Cylinder Heads:

• BluePrint LS3 Aluminum Cylinder Heads
• Chamber Size: 69cc
• Intake Valve: 2.165"
• Exhaust Valve: 1.590"
• Intake Runner: 259cc
• Exhaust Runner: 102cc

Camshaft:

• Hydraulic Roller Camshaft
• Three-Bolt Cam Design
• Intake Lift: .612"
• Exhaust Lift: .585"
• Duration @ .050:
  • Intake: 225°
  • Exhaust: 238°
• Lobe Separation Angle: 113°

Intake System:

• BluePrint Fabricated Aluminum LS3 Intake Manifold
• Part Number: BPP822112
• Drive-by-Wire Throttle Body
• Fuel Rail Kit Included
• Fuel Injectors Included

Fitment Applications:

Compatible with custom GM LS-based builds including:

• Chevrolet Camaro
• Chevrolet Corvette
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet Impala
• Chevrolet Silverado
• Chevrolet C10
• Pontiac GTO
• Pontiac Firebird
• Pontiac G8
• Chevrolet SS
• Street Rods
• Restomod Builds
• Pro Touring Vehicles
• LS Swap Vehicles
• Custom Muscle Cars
• Performance Vehicles

Verify transmission compatibility, ECU requirements, accessory clearance, fuel system requirements, and exhaust compatibility before installation.

Installation Notes:

• This engine does not include ECU or wiring harness.
• Customer must supply compatible engine management system.
• Ignition timing is controlled through customer-supplied ECU/tuning system.
• Requires a non-weighted flexplate or flywheel.
• Recommended fuel: 91+ octane.
• BluePrint recommends a 2200+ RPM stall converter for automatic transmission applications.
• Retro-fit oil pan fits many 1955-1995 GM front-engine rear-wheel-drive applications.
• Not intended for pollution-controlled vehicle applications.
• Not compatible with dry sump systems.
• Professional installation and tuning are recommended.