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Item #: BLS4273KBT56
Our Price: $27,299.00
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Cancer and Reproductive Harm

https://www.p65warnings.ca.gov

Description 

BLS4273KBT56 LS 427 c.i. 605 HP Engine and T56 Manual Transmission -Standard Edition Builder Series - Fuel Injected

*Stock may be limited please call for availability before ordering* 
*Prices include shipping to a business address with a forklift or loading dock* 
*Residential addresses or lift gate deliveries please call for a quote*

GM LS Compatible 427 c.i. Engine and T56 Manual Transmission - 605 Horsepower - Standard Edition Builder Series - Black Pulley Kit - Holley Terminator X EFI System

SKU: BLS4273T56

Horsepower & Torque: 605 Horsepower / 565 ft. lbs. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 11:1

Camshaft: Hydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 – 114 LSA

Pistons: Forged

Crankshaft: Forged Crank – 4.125" Stroke and Forged 6.125" Rods

Fuel Injection: Holley Terminator X Max - Gen IV Complete ECU/Harness EFI System

Fuel Recommendation: 91+ Octane

Description:

  • Horsepower & Torque: 605 Horsepower / 565 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 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
  • 4.0665" 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 Cam
  • .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:

  • 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
  • LS Swap Oil Pan - Windage Tray - Pick Up Screen
  • BluePrint Engines Fuel Injectors and Rail
  • DBW Throttle Body - BPP12191019
  • Throttle Pedal, and Sensors
  • GM Plastic Intake Manifold
  • Spark Plugs & Wires
  • Harmonic Balancer
  • Coil Packs
  • Black Front Accessory Drive
    • LT1 Style 150-amp Alternator
    • LT1 Style Water Pump
    • Type II Power Steering Pump w/ Reservoir
    • Compact Style Air Conditioning Compressor 

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 Ratio: 2.66:1
    • Second Gear Ratio: 1.78:1
    • Third Gear Ratio: 1.30:1
    • Fourth Gear Ratio: 1.00:1
    • Fifth Gear Ratio: 0.80:1
    • Sixth Gear Ratio: 0.63:1

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.
  • 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

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Product Accessories for LS 427 c.i. 605 HP Engine and T56 Manual Trans BLS4273KBT56