BluePrint Engines 376 c.i. GM LS style proseries dressed engine with efi

This LS3-based engine build is a masterclass in modern performance and reliability, delivering a robust 525 horsepower and 460 ft. lbs. of torque. With a 10.7:1 compression ratio, it’s engineered for high-output efficiency and streetable power. At its heart are BluePrint Engines’ premium components, including LS3 aluminum heads, a hydraulic roller cam, hypereutectic pistons, and a nodular iron crankshaft—each chosen for strength and precision. Fuel and air management are handled by the Holley Terminator X Max system, paired with a fabricated aluminum intake manifold, high-flow injectors, and a matching fuel rail kit. The LS Swap oil pan ensures proper fitment across platforms, while the drive-by-wire throttle body adds cutting-edge responsiveness. Tying it all together is a black pulley kit featuring an LS2-style water pump, a high-output 140-amp alternator, a compact peanut-style A/C compressor, and a Type II power steering pump with remote reservoir—delivering both form and function in a sleek, performance-ready package.

Description:

• Horsepower & Torque: 525 Horsepower / 460 ft. lbs. Torque
• Compression Ratio: 10.7:1
• BluePrint Engines LS3 Aluminum Heads
• BluePrint Engines Hydraulic Roller Cam
  
• BluePrint Engines Hypereutectic Pistons
• Nodular Iron Crankshaft

• BluePrint Engines High Strength Cast Iron (LSX Style) Block
• Increased Deck Thickness and Strength Webbing
• Utilizes OEM LS3 Front and Rear Covers
• Improved Water Jacket Design
  
• Extended Cylinder Skirt
• 1-Piece Rear Main Seal
• Priority Main Oiling
• 4.0622" Bore
• 6-Bolt Main
  

• Nodular Iron Crankshaft
• 3.622" Stroke
• 6.098" Connecting Rods w/ 150,000 PSI Bolts
• Hypereutectic Pistons
• Internally Balanced Front and Rear
  

• BluePrint LS3 Aluminum Cylinder Heads - PS8015
• 69cc Chamber
• 2.165" Intake / 1.590" Exhaust Valves
• 259cc Intake / 102cc Exhaust Runners
  

• Hydraulic Roller Cam
• .612 Intake / .585 Exhaust Lift
• 225 Intake / 238 Exhaust Duration
• @.050-113 Degree Lobe Separation
  

• Real Time Fuel Map Learning Simplifies Tuning by Dynamically Adjusting the Base Fuel Rate
• On Board Bosch LSU 4.9 Wideband Control, Enabling Accurate AFR Readings and Closed Loop Tuning
• Eight High Impedance Injector Drivers, Ideal for Stock LS Injectors and Holley EFI Injectors
• Integrated 1-Bar MAP Sensor for Naturally Aspirated or Nitrous Setups, with Harness Support for External Higher Bar Sensors if needed
• 4 Configurable Inputs (12V, Ground, 5V, Frequency) and 2 Outputs (Ground, PWM) - Ideal for Electric Fans, Boost Control Solenoids, Nitrous Control and more
• Free PC Tuning Software via USB/CAN Interface for Full Laptop Control and Advance Setup
• Integrated 3.5" Touchscreen Handheld with Setup Wizard, Internal Data Logging, and Real Time Gauge Displays
• Terminator X Max ECU will Include a Base Timing Map Pre-Configured for this engine

• LS3 Fabricated Aluminum Intake Manifold - BPP822112
  
• Drive by Wire Throttle Body - BPP12191019
• LS Swap Oil Pan - BPP81073
• Fuel Injectors (42 lbs. @ 58 psi)
• Spark Plugs and Wires
• Harmonic Balancer 
• Throttle Pedal
• Timing Cover
  
• Valve Covers
• Coil Packs
• Fuel Rail
• Black Pulley Kit
  • LS2 Style Water Pump
  • 1- Wire 140amp Alternator
  • Peanut Style Air Conditioning Compressor
  • Type II Power Steering Pump with Remote Reservoir

• Please note, It is not necessary to run the Holley setup wizard, as this will erase the existing calibration loaded by BluePrint Engines. The ecu is fully unlocked and tunable for further adjustments once installed in customer vehicle.
• Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars.
• Not for use in pollution-controlled vehicles or in dry sump applications.