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BluePrint Engines

BluePrint Engines Pro Series GM LS 427ci 860hp T56 Manual Crate Engine w/ 3.0 Whipple, Natural Pulley Kit, Terminator X EFI System

Part Number:
BLS4277SCTKT56
MPN:
BLS4277SCTKT56
Availability:
Ships from Manufacturer
Shipping:
Free over $98 in U.S. 48
Type:
Crate Engines
Block Material:
High Strength Cast Iron
Cylinder Heads Material:
Aluminum
Crankshaft Material:
Forged Steel
Crankshaft Reluctor:
58x
Crankshaft Stroke (in.):
4.125
Rod Length (in.):
6.125
Piston Bore (in.):
4.070
Piston Material:
Forged Steel
Compression Ratio:
9.5:1
Camshaft Included:
Yes
Electronics Included:
Yes
Quantity:
Sold Individually
Notes:
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.
  • BluePrint Engines Pro Series GM LS 427ci 860hp T56 Manual Crate Engine w/ 3.0 Whipple, Natural Pulley Kit, Terminator X EFI System (BLS4277SCTKT56)
  • BluePrint Engines Pro Series GM LS 427ci 860hp T56 Manual Crate Engine w/ 3.0 Whipple, Natural Pulley Kit, Terminator X EFI System (BLS4277SCTKT56)
  • BluePrint Engines Pro Series GM LS 427ci 860hp T56 Manual Crate Engine w/ 3.0 Whipple, Natural Pulley Kit, Terminator X EFI System (BLS4277SCTKT56)
$35,299.00

Description

BluePrint Engines Pro Series GM LS 427ci 860hp T56 Manual Crate Engine w/ 3.0 Whipple, Natural Pulley Kit, Terminator X EFI System

BluePrint Engines unleashes serious LS power with this 427 c.i. Builder Series package, delivering a massive 855 horsepower and paired perfectly with a tough, street-proven 4L80E automatic transmission. This combo is built for the enthusiast who wants modern reliability with race-ready punch, all controlled by the Holley Terminator X EFI system for crisp tuning, fast starts, and razor-sharp throttle response. Precision machining, premium internals, and BluePrint’s Pro-series build quality ensure the strength to handle every bit of boost, rpm, and abuse you throw at it. For builders chasing a turnkey LS powerhouse that’s ready to hit the streets, the strip, or anywhere in between, this 427/4L80E package is pure, modern muscle, delivered.

Description:  

  • Horsepower & Torque: 855 Horsepower / 810 ft. lbs. Torque
  • Compression Ratio: 9.5:1
  • BluePrint Engines Aluminum Heads
  • BluePrint Engines Hydraulic Roller Cam
  • BluePrint Engines Forged Crank
  • BluePrint Engines Forged Pistons

Block:

  • 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
  • 4.070" Bore

Rotating Assembly:

  • New Forged Crankshaft
  • 4.125" Stroke
  • Forged 6.125" Connecting Rods
  • Forged Pistons
  • Front and Rear Internally Balanced

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8015
  • 70cc 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

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
  • Gen 6 / 3.0 Whipple Supercharger
  • Throttle Pedal, and Sensors
  • Spark Plugs & Wires
  • Harmonic Balancer
  • Water Pump
  • Coil Packs
  • Dipstick
  • Timing Cover
  • Oil Pan and Oil Pump
  • Valve Cover
  • Natural Front Accessory Drive -
    • LS3 Style Water Pump
    • 150amp Alternator
    • Compact Style Air Conditioning Compressor
    • Power Steering Pump with Attached Reservoir

Assembled with Complete T56 Six Speed Transmission Package:

   Includes the following: 

  • McLeod Super Steel Pro Dual Disk Clutch
  • Steel Bell Housing
  • Billet Flywheel
  • Engine Guard
  • Starter
    • First Gear Ration: 2.66:1
    • Second Gear Ratio: 1.78:1
    • Third Gear Ration: 1.30:1
    • Fourth Gear Ration: 1.00:1
    • Fifth Gear Ration: 0.80:1
    • Sixth Gear Ration: 0.63:1

Notes:

  • 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.
  • Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars
    Not for use in pollution-controlled vehicles or in dry sump applications.
  • BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.
  • Engine/Trans Package Ships assembled

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

Every BluePrint engine is Dyno tested and has strict parameters to pass and
be shipped to the customer. All parts are tested before being released for production:
• DC and Pneumatic assembly tools calibrated daily
• Fatigue Testing
• Durability Testing
• Random subassembly testing
• Quality system is ISO 9001: 2015 certified
• Traceable engine “DNA” electronic barcode record keeping of
manufacturing and performance data

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Warranty Information

BluePrint Engines (including Builder Series)- Standard Warranty 30 months or 50,000 miles (parts and labor)* BluePrint Engines Extended Warranty- 48 months or unlimited miles (parts and labor)* Race / Motorsports Engines -No warranty Marine Engines- 12 months (parts and labor) Short Blocks-12 months (parts only) Bare Blocks- 6-Month Unaltered International Sales- Warranty coverage is handled by the in-country distributor *Applies to eligible engine part numbers beginning with “B” or “P.” Warranty coverage is subject to terms and conditions. Proper installation and maintenance are required.
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