BluePrint Engines PSLS42781CTF LS 427/585HP Pro, Base Dressed

This powerhouse of an engine setup is built to deliver serious performance, boasting an impressive 585 horsepower and 520 ft. lbs. of torque. At its core is a BluePrint Engines high-strength cast iron LSX-style block, paired with forged internals including a crank and pistons for maximum durability under pressure. The 11:1 compression ratio ensures efficient combustion and power delivery, while the LS3 aluminum heads and hydraulic roller cam for enhanced airflow and responsiveness. Feeding this beast is a cast aluminum LS3 intake manifold, matched with high-performance injectors and a fuel rail kit. The drive-by-wire throttle body offers modern precision, and the LS swap oil pan, water pump, and gas pedal round out the essentials for seamless integration. Tying it all together is the Holley Terminator X Max system, providing advanced engine management and tuning capabilities. This setup isn’t just built—it’s engineered to dominate.

• BluePrint LS 427 delivers 585 horsepower and 520 ft.-lbs. of torque
• Holley Terminator X Max EFI
• High-strength LSX-style cast iron block, forged crankshaft, and forged pistons 
• BluePrint LS3 aluminum heads, hydraulic roller cam, and cast aluminum LS3 intake manifold
• Swap-ready package includes LS swap oil pan, drive-by-wire throttle body, gas pedal, water pump, injectors and fuel rail kit, coil packs, valve covers, and timing cover

Block:

• 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
• 4.0695" Bore
• 6-Bolt Main

Rotating Assembly:

• New Forged Crankshaft
• 4.125" Stroke
• Forged 6.125" Connecting Rods
• Forged 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
• .624 Intake / .624 Exhaust Lift
• 239 Intake / 255 Exhaust Duration
• @.050-114 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:

• Drive by Wire Throttle Body - BPP12191019
• LS3 Cast Aluminum Intake Manifold
• LS Swap Oil Pan - BPP81074
• Water Pump - BPPLS126WP
• Injectors and Fuel Rail Kit
• Spark Plugs & Wiring
• Harmonic Balancer 
• Timing Cover
• Valve Covers
• Coil Packs
• Gas Pedal