Overview:

The BluePrint Engines GM LS Compatible 376 ci is a masterclass in high-performance durability, engineered to deliver a staggering 700 horsepower and 640 lb-ft of torque with unwavering reliability. At the heart of this beast lies the Gen 6 / 3.0 Whipple Supercharger, providing instant, efficient boost and relentless power across the RPM range. The Holley Terminator X Max Gen IV ECU and harness system ensures precise engine management, while the advanced EFI system—complete with high-flow fuel injectors and rail—maintains optimal combustion under extreme conditions. Every supporting component, from the oil pan and coil packs to the spark plugs, wires, water pump, and harmonic balancer, is built to withstand the rigors of high-output operation. Paired with the T56 manual transmission, this setup offers smooth, torque-rich shifts that handle the power with ease. 

Description:

• Horsepower & Torque: 700 Horsepower / 640 ft. lbs. Torque
• Compression Ratio: 9.5:1
• BluePrint Engine LS3 Aluminum Heads
• BluePrint Engine Hydraulic Roller Cam
  
• BluePrint Engine Forged Pistons
• BluePrint Engine Forged Crankshaft
  

Block:

• BluePrint Engines High Strength Cast Iron 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
• 4.070" Bore
• 6-Bolt Main
  

Rotating Assembly:

• Forged Crankshaft
• 3.622" Stroke
• 6.125"Connecting Rods w/ 150,000 PSI Bolts
• Forged Pistons
• Internally Balanced Front and Rear

Cylinder Heads:

• BluePrint Aluminum Cylinder Heads - PS8015
• 70cc Chamber
• 2.165" Intake / 1.590" Exhaust Valves
• 259cc Intake / 102cc Exhaust Runners

Cam Specs:

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

Holley Terminator X Max Specific Features and Benefits:

• 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.

Also Includes: 

• Low Profile Rear Sump Oil Pan - BPP81073
• All Sensors Required for Engine to Run
• DBW Throttle Body - BPP12191019
• Gen 6 / 3.0 Whipple Supercharger
• Water Pump - BPPLS126WP
  
• Spark Plugs & Wires
• Harmonic Balancer
• Accelerator Pedal
• Timing Cover
  
• Valve Covers
  
• Coil Packs
• Oil Pump 
  
• Dipstick
  
• Black Front Accessory Drive:
  • 150-amp Alternator
  • LT3 Style Water Pump
  • Power Steering Pump with Attached Reservoir
  • Compact Style Air Conditioning Compressor

Assembled with Complete T56 Six Speed Transmission Package:

• McLeod Super Steel Pro Dual Disk Clutch
• Bell Housing
• Billet Flywheel
• Engine Guard
• Starter
  • First Gear Ration: 2.66:1
  • Second Gear Ratio: 1.78:1
  • Third Gear Ration: 1.30:1
  • Fourth Gear Ration: 1.00:1
  • Fifth Gear Ration: 0.80:1
  • Sixth Gear Ration: 0.63:1

Notes:

• This Holley EFI Equipped engine has a fully calibrated ECU by BluePrint Engines. Please DO NOT follow the Holley EFI manual for the calibration of the ECU.
• BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning. 
• The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment. Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles. 
• Engine/Trans Package Ships assembled