BluePrint Engines PSLS42751CTFK LS 427 Pro, Deluxe Dressed, Pol.

This engine build is a masterclass in modern muscle, pushing out a commanding 600 horsepower and 530 ft. lbs. of torque with a crisp 11:1 compression ratio. At its heart is BluePrint Engines’ high-strength cast iron LSX-style block, fortified with forged pistons and a forged crank for uncompromising durability and high-RPM stability. The LS3 aluminum heads and hydraulic roller cam work in harmony to maximize airflow and valve timing, delivering smooth, responsive power across the rev range. Fuel and air are fed through a sleek LS3 fabricated intake manifold and fuel rail system, with a drive-by-wire throttle body ensuring precise control. The Holley Terminator X Max system brings advanced engine management to the table, making tuning and diagnostics seamless. A polished pulley kit adds both function and flair, featuring an LS2-style water pump, a high-output 140-amp alternator, a compact peanut-style A/C compressor, and a Type II power steering pump with remote reservoir. This setup isn’t just built to perform—it’s built to impress, whether you're carving corners or cruising the boulevard.

• BluePrint LS 427 delivers 600 horsepower and 530 ft.-lbs. of torque
• Polished pulley kit
• Holley Terminator X Max EFI system
• High-strength LSX-style cast iron block, forged crankshaft, and forged pistons 
• BluePrint LS3 aluminum heads, hydraulic roller cam, and fabricated LS3 intake manifold

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
• 4.0685" Bore
• 6-Bolt Main

Rotating Assembly:

• 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 Separate

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:

• LS3 Fabricated Aluminum Intake Manifold - BPP822112
• Drive by Wire Throttle Body - BPP12191019
• LS Swap Oil Pan - BPP81074
• Injectors and Fuel Rail Kit
• Spark Plugs and Wires
• Harmonic Balancer 
• Throttle Pedal
• Timing Cover
• Valve Covers
• Coil Packs
• Polished Pulley Kit
• LS2 Style Water Pump
• 1- Wire 140amp Alternator
• Peanut Style Air Conditioning Compressor
• Type II Power Steering Pump with Remote Reservoir