BluePrint Engines 376 c.i. GM LS Compatible Builder Series - Standard Edition - Supercharged - T56 Manual Transmission. (PART #BPE-3769SCTT56)

The BluePrint Engines GM LS Compatible 376ci is a powerhouse built for uncompromising strength and performance. Anchored by the Magnuson TVS 2650 Supercharger, this setup delivers explosive boost and torque with precision and reliability. The Holley Terminator X Max Gen IV ECU and harness system ensures seamless engine control, while the advanced EFI system—complete with high-flow fuel injectors and rail—maintains consistent power delivery under extreme conditions.

Every component, from the oil pan and coil packs to the spark plugs, wires, water pump, and harmonic balancer, is engineered to withstand high-output demands and deliver long-term durability. Paired with the rugged T56 manual transmission, this configuration offers a visceral driving experience with robust mechanical engagement, making it a perfect fusion of brute force and refined control.

Blocks:

• 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
• 4.0665" Bore
• 6-Bolt Main

Cylinder Heads:

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

Rotating Assembly:

• I-Beam 6.125" Forged Connecting Rods w/ 150,000 PSI Bolts
• Internally Balanced Front and Rear

Included items:

• LS Swap Oil Pan - Windage Tray - Pick Up Screen
• BluePrint Engines Fuel Injectors and Rail
• DBW Throttle Body - BPP12191019
• Throttle Pedal, and Sensors
• Spark Plugs & Wires
• Coil Packs

Assembled with Complete T56 Six Speed Manual Transmission Package:

• McLeod Super Steel Pro Dual Disk Clutch
• Steel 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

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.

Notes:

• 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.
• BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning.
• Your engine requires pre-lubing before startup. Your engine has been dyno tested, but it does require additional preventative maintenance before initial startup. Fill oil filter and oil pan to recommended capacity. Remove spark plugs and proceed to crank engine over with starter until oil pressure is visible on manual gauge. Reinstall spark plugs and proceed with initial startup. It is critical that you read and follow the installation instructions in the installation guide.
• Not for use in pollution-controlled vehicles.