Hawks Motorsports proudly offers the BluePrint Engines PSLS37680CTF GM LS Compatible 376 C.I. Pro Series Engine, a powerful and versatile crate engine designed for high-performance street builds, LS swaps, muscle cars, restomods, and custom performance applications. Delivering 510 horsepower and 440 lb-ft of torque, this LS-compatible engine combines modern LS architecture with premium internal components for dependable power and exceptional drivability.

Built around a BluePrint high-strength cast iron LSX-style block, this engine features LS3-style aluminum cylinder heads, a 10.7:1 compression ratio, hydraulic roller camshaft, hypereutectic pistons, and a nodular iron crankshaft designed to provide reliable performance for street and competition applications.

The PSLS37680CTF is a Base Dressed package and does not include an ECU or wiring harness, allowing builders to choose their preferred engine management system. This makes it an excellent choice for custom LS swaps where flexibility and aftermarket tuning options are required.

This complete engine package includes essential LS swap components including the LS3 cast aluminum intake manifold, drive-by-wire throttle body, LS swap oil pan, water pump, injectors, fuel rail, ignition components, harmonic balancer, timing cover, valve covers, and coil packs.

Key Features:

• Part Number: PSLS37680CTF
• GM LS Compatible Pro Series Engine
• 376 Cubic Inch Displacement
• 510 Horsepower
• 440 lb-ft Torque
• Base Dressed Configuration
• No ECU / Wiring Harness Included
• High-Strength LSX-Style Cast Iron Block
• Increased Deck Thickness and Strength Webbing
• Extended Cylinder Skirt Design
• Priority Main Oiling System
• 6-Bolt Main Design
• 1-Piece Rear Main Seal
• LS3 Aluminum Cylinder Heads
• Hydraulic Roller Camshaft
• Hypereutectic Flat Top Pistons
• Nodular Iron Crankshaft
• Internally Balanced Rotating Assembly
• 10.7:1 Compression Ratio
• 91+ Octane Fuel Recommended
• Multi-Port Fuel Injection Ready
• OEM LS3 Front & Rear Cover Compatible
• Includes LS3 Cast Aluminum Intake Manifold
• Includes Drive-by-Wire Throttle Body
• Includes LS Swap Oil Pan
• Includes Water Pump
• Includes Fuel Injectors & Fuel Rail
• Includes Spark Plugs & Wiring
• Includes Harmonic Balancer
• Includes Timing Cover
• Includes Valve Covers
• Includes Coil Packs
• Manufactured by BluePrint Engines

Engine Specifications:

General:

• Manufacturer: BluePrint Engines
• Part Number: PSLS37680CTF
• Engine Family: GM LS Compatible
• Series: Pro Series
• Configuration: Base Dressed
• Displacement: 376 C.I.
• Horsepower: 510 HP
• Torque: 440 lb-ft
• Compression Ratio: 10.7:1
• Fuel Requirement: 91+ Octane
• Fuel System: Multi-Port Fuel Injection
• ECU/Harness: Not Included

Block Specifications:

• BluePrint High Strength Cast Iron LSX-Style Block
• Bore: 4.0662"
• Stroke: 3.622"
• 6-Bolt Main Design
• Priority Main Oiling
• Increased Deck Thickness
• Strengthened 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: 6.125"
• High Strength Rod Bolts
• Hypereutectic Flat Top Pistons
• Internally Balanced 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°

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 Applications
• Custom Muscle Cars
• Performance Vehicles

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

Installation Notes:

• This engine does not include ECU or wiring harness.
• Customer must supply compatible engine management system.
• Designed for builders using aftermarket or custom ECU solutions.
• Requires compatible LS transmission/flexplate or flywheel setup.
• Requires a non-weighted flexplate or flywheel.
• Recommended fuel: 91 octane or higher.
• BluePrint recommends a 2200+ RPM stall converter for automatic transmission applications.
• Not intended for pollution-controlled vehicle applications.
• Not compatible with dry sump systems.
• Professional installation and tuning are recommended.