Hawks Motorsports proudly offers the BluePrint Engines PSLS37630CT GM LS Compatible 376 C.I. Pro Series Engine, a high-performance LS-based crate engine designed for street performance, Pro Touring, muscle car, and custom swap applications. Delivering 530 horsepower and 495 lb-ft of torque, this Pro Series long block combines modern LS architecture with premium internal components for exceptional reliability and performance.

This engine features a high-strength LSX-style cast iron block, BluePrint LS3 aluminum cylinder heads, a hydraulic roller camshaft, hypereutectic pistons, and a nodular iron crankshaft for a powerful and durable combination. With a 10.7:1 compression ratio, this engine is designed to operate on 91+ octane fuel while delivering strong street manners and impressive horsepower.

The PSLS37630CT is supplied as a long block assembly and does not include a fuel injection ECU or wiring harness, allowing builders to select their preferred engine management system for custom applications. This makes it an excellent choice for LS swaps, classic muscle cars, restomods, and performance builds requiring a flexible electronics solution.

Key Features:

• Part Number: PSLS37630CT
• GM LS Compatible Pro Series Engine
• 376 Cubic Inch Displacement
• 530 Horsepower
• 495 lb-ft Torque
• Long Block 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
• 1-Piece Rear Main Seal
• LS3 Aluminum Cylinder Heads
• Hydraulic Roller Camshaft
• Hypereutectic Flat Top Pistons
• Nodular Iron Crankshaft
• Forged 6.125" Connecting Rods
• Internally Balanced Rotating Assembly
• 10.7:1 Compression Ratio
• 91+ Octane Fuel Recommended
• OEM LS3 Front and Rear Cover Compatible
• Includes LS Valve Covers
• Includes LS Swap Oil Pan
• Includes Harmonic Balancer
• Designed for Custom LS Swap Applications
• Manufactured by BluePrint Engines

Engine Specifications:

General:

• Displacement: 376 C.I.
• Horsepower: 530 HP
• Torque: 495 lb-ft
• Compression Ratio: 10.7:1
• Fuel Requirement: 91+ Octane

Block:

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

Rotating Assembly:

• Nodular Iron Crankshaft
• Stroke: 3.622"
• Forged Connecting Rods
• Rod Length: 6.125"
• 150,000 PSI 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 Cam
• Intake Lift: .612"
• Exhaust Lift: .585"
• Duration @ .050:
  • Intake: 225°
  • Exhaust: 238°
• Lobe Separation Angle: 113°

Fitment Applications:

Compatible with custom LS-powered 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 accessory drive, oil pan clearance, wiring requirements, transmission compatibility, and engine controller requirements before installation.

Installation Notes:

• This engine does not include ECU or wiring harness.
• Customer must provide compatible engine management system.
• Designed for builders selecting their own EFI controller package.
• Requires compatible LS accessories and fuel system components.
• Professional installation and tuning are recommended.
• Verify transmission, clutch/flexplate, cooling system, and exhaust compatibility before installation.
• Recommended for use with premium fuel (91+ octane).
• BluePrint recommends proper LS swap intake and MAF calibration components for optimal tuning.