BluePrint Engines 376 c.i. GM LS Compatible Builder Series -Truck Edition - Fuel Injected - 4L65/70E Automatic Transmission 4WD Ready. (PART #BPE-BLS37684X4)

BluePrint Engines takes modern LS performance off-road with the Truck Edition Builder Series 376 c.i. engine paired to a 4WD-ready 4L65/70E automatic transmission. Delivering crisp throttle response, lightweight power, and rock-solid reliability, this combo is engineered for trucks that work hard, play harder, and demand modern drivability. The Holley Terminator X EFI system keeps fueling and spark dialed for instant starts, smooth power delivery, and easy tuning whether you're towing, trail riding, or daily driving.

Built with premium internals, precision machining, and the durability BluePrint is known for, this 376 Truck Edition package offers a perfect blend of LS efficiency, responsive power, and turnkey 4WD readiness for any truck project. The 2-piece BluePrint low profile intake manifold is perfect for factory or low angle hood designs and works great from 2200-8000 RPM range. The 2-piece design is perfect for periodic clean up or intake manifold porting and is capable of handling up to 600 horsepower.

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
• 6-Bolt Main

Cylinder Heads:

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

Rotating Assembly:

• 6.098" Connecting Rods w/ 150,000 PSI Bolts
• Internally Balanced Front and Rear

Included items:

• BluePrint Engines Fuel Injectors and Rail
• BluePrint Engine Cast Aluminum Intake
• Low Profile Swap Oil Pan - BPP81073
• DBW Throttle Body - BPP12191019
• Water Pump - BPPLS126WP
• Spark Plugs and Wires
• Harmonic Balancer
• Coil Packs

Assembled with Complete 4l65/70e 4 Speed Automatic Transmission Package:

• 4L65/70E Complete Package
• 4wd Ready Case with 27 Spline 4WD Output Shaft
• Electronic Transmission Controller Included
• 2200-2400 Stall Torque Converter
• Flex Plate
• Starter
• Does NOT Include Transfer Case* Uses Common 4L60/70, 6 Bolt Transfer Case Mounting

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:

• BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning.
• Ideal for 1/2 ton, 4WD pickups with 3:90 or numerically higher rear gears, and 33-inch tires, and light towing.
• 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.
• This is NOT intended for heavy duty application or heavy towing.
• Engine/Trans Package Ships assembled
• 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.