Home / GM COMPATIBLE>LS>427 ci / GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System
  • GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System

GM LS Compatible 427 c.i. Pro Series Engine - 800 Horsepower - Deluxe Dressed - Black Pulley Kit - Holley Terminator X EFI System

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    • Detail

      Overview:

      The LS-compatible platform is the undisputed king of street machines, and this BluePrint Engines 427 C.I. Pro Series LS compatible powerhouse proves exactly why. Built to dominate, this base-dressed beast unleashes a jaw-dropping 800 horsepower and 780 ft-lbs of torque, this base dressed beast packs a 11:1 thanks to a combination of BluePrint aluminum heads, hydraulic roller cam, forged pistons, and a forged crankshaft, all securely anchored in a high-strength LSX-style block. Controlling this build is Holley’s Terminator X EFI system preloaded with a base tuning map tailored for this engine. Real-Time Fuel Map Learning simplifies tuning by dynamically adjusting fuel delivery, while the Bosch LSU 4.9 wideband sensor enables precise AFR monitoring and advanced closed-loop tuning. With eight high-impedance injector drivers, it’s compatible with both stock LS and Holley EFI injectors. An integrated 1-bar MAP sensor supports naturally aspirated or mild nitrous setups, with optional harnessing for higher-bar sensors. Four configurable inputs and two outputs give you control over accessories like electric fans, boost solenoids, or nitrous. Fine-tune via free PC software or on-the-fly with the included 3.5" touchscreen handheld, complete with setup wizard, real-time gauges, and data logging.

      Description:

      • Horsepower & Torque: 800 Horsepower / 780 ft. lbs. Torque
      • Compression Ratio: 11:1
      • BluePrint Engines LS3 Aluminum Heads
      • BluePrint Engines Hydraulic Roller Cam
      • BluePrint Engines Forged Crank
      • BluePrint Engines Forged Pistons

      Block:

      • BluePrint Engines High Strength (LSX Style) 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 Sea
      • Priority Main Oiling
      • 4.070" 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
      • 70cc Chamber
      • 2.165" Intake / 1.600" 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

      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:

      • Front Accessory Drive with LT1 Style 150-amp Alternator, LT1 Style Water Pump, Type II Power Steering Pump with Baffled Edges, and Compact Style A/C Compressor
      • Low Profile Rear Sump Oil Pan - BPP81074
      • All Sensors Required for Engine to Run
      • DBW Throttle Body - BPP12191019
      • Magnuson TVS2650 Supercharger
      • Spark Plugs & Wires
      • Harmonic Balancer
      • Timing Cover
      • Valve Covers
      • Coil Packs

      Notes:

      • Not for use in pollution-controlled vehicles.
      • BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct calculations and Dyno calibration are maintained with the provided ECU / tuning.
      • Terminator X MAX is capable of transmission control but requires additional Transmission harness Such as BPP558405 if pairing to 96-08 4L60E or 4l80E.

    • Description
      This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.
    • Warranty

      The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.

      We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.

    • Notes
      • Designed as factory replacement long block for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required.
      • Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states.
      • If your vehicle was originally equipped with a 2-piece rear main seal crankshaft, a new flex plate or flywheel will be required. Note for those same early applications, this block features the dipstick on the Passenger side.
      • Must verify with application list linked above for fitment.
    • Also Includes
      • New Valve Covers
      • Rear Sump Oil Pan
      • Timing Cover
      • Harmonic Balancer

      Recommended Break in Oil: BPP710 (Click Here)

      Recommended Service Oil: BPP10W30 (Click Here)

      Recommended Oil Filter: BPP51061 (Click Here)

    • Ignition Timing
      • OEM Specifications
    • Cam Specs
      • Hydraulic Flat Tappet
      • OEM Spec Per Listed Vehicles
    • Cylinder Heads
      • Perimeter Bolt Iron Cylinder Heads
    • Rotating Assembly
      • Cast Crankshaft
      • 3.480" Stroke
      • Forged 5.700" Connecting Rods
      • OEM Spec Pistons
      • Internally Balanced Front - Externally Balanced Rear Engine
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