Overview:

The Blueprint Engines 376 cubic inch Pro Series crate engine is a dyno-tested, turnkey powerplant that delivers 530 horsepower and 495 lb-ft of torque, making it an ideal match for Holley’s Terminator X Max 550-931 EFI system. This LSX-based engine features a BluePrint Engines High Strength cast iron (LSX Style) block with reinforced internals, including a nodular iron crankshaft, forged rods, and hypereutectic pistons—all internally balanced for durability and long-term performance. Paired with LS3-style aluminum heads and a .612 Intake / .585 Exhaust Lift hydraulic roller cam, the 10.7:1 compression ratio offers strong street and strip capability. The Terminator X Max ECU included in the kit integrates seamlessly with this engine’s 58x crank and 4x cam sensor setup, providing plug-and-play functionality with drive-by-wire throttle, coil packs, and EV6-style fuel injectors already installed. The ECU’s self-learning fuel map ensures easy startup and quick adaptation to the engine’s fueling needs without complex tuning, while also enabling expandability for nitrous, boost control, or electric fan integration via CAN or I/O modules like Holley’s 554-165. With included accessories like a pre-installed intake manifold, injectors, throttle body, water pump, and an easy to mount DBW pedal, this engine is truly swap-ready. Whether for a restomod, pro-touring build, or a street performance application, the combination of a dyno-certified engine and the advanced control of the Terminator X Max offers unmatched reliability, tunability, and future upgrade potential—all backed by a 30-month/50,000-mile warranty.

Description:

• Horsepower & Torque: 530 Horsepower / 495 ft. lbs. Torque
• Compression Ratio: 10.7:1
• BluePrint Engines Aluminum Heads
• BluePrint Engines Hydraulic Roller Cam
  
• BluePrint Engines Hypereutectic Pistons
• Nodular Iron Crankshaft

Block:

• BluePrint Engines High Strength Cast Iron (LSX Style) Block
• Increased Deck Thickness and Strength Webbing
• Extended Cylinder Skirt
• Priority Main Oiling
• 4.0662" Bore
• 6-Bolt Main
• 1-Piece Rear Main Seal
• Improved Water Jacket Design
• Utilizes OEM LS3 Front and Rear Covers

Rotating Assembly:

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

Cylinder Heads:

• BluePrint Aluminum Cylinder Heads - PS8015
• 69cc 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

Ignition Timing:

• ECM Supplied with Calibration

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:

• LS Swap Oil Pan - Windage Tray - Pick Up Screen
• BluePrint Engines Fuel Injectors and Rail
• DBW Throttle Body - BPP12191019
• Water Pump - BPPLS126WP
  
• Throttle Pedal, and Sensors
• GM Plastic Intake Manifold
  
• Spark Plugs & Wires
• Harmonic Balancer
  
• Coil Packs
  

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.
• Holley terminator X MAX System supports transmission control but requires additional Transmission harness such as BPP558405.
• BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning. 
• Engine features a 58x reluctor wheel and 4x cam sensor. Knock sensor provision located on side of block. Cam sensor located in timing cover. utilizes EV6 type injector.