GM LS Compatible 427 c.i. Engine and T56 Manual Transmission - 585 Horsepower - Standard Edition Builder Series - Holley Terminator X EFI System

SKU: BLS4278T56

GM LS Compatible 427 c.i. Engine and T56 Manual Transmission - 585 Horsepower - Standard Edition Builder Series - Holley Terminator X EFI System

SKU: BLS4278T56

Horsepower & Torque: 585 Horsepower / 520 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

Does NOT come with a Front Accessory Drive

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Description:

  • Horsepower & Torque: 585 Horsepower / 520 FT LBS
  • 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
  • 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:

  • BluePrint Engines Cast Aluminum Intake Manifold
  • LS Swap Oil Pan - Windage Tray - Pick Up Screen
  • BluePrint Engines Fuel Injectors and Rail
  • DBW Throttle Body - BPP12191019
  • Water Pump - BPPLS126WP
  • Throttle Pedal, and Sensors
  • Spark Plugs & Wires
  • Harmonic Balancer
  • Coil Packs

Assembled with Complete T56 Six Speed Transmission Package:

  • 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:

  • 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
 

Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.

Part Number: BLS4278T56

Fuel Delivery Type: Fuel Injected

Spark Plug: CCH9405

Spark Plug Gap: .045"

Harmonic Balancer: Non-Weighted

Flexplate/Flywheel: Non-Weighted

Stall Converter: 2200+

Intake Manifold: BluePrint Engines Cast Aluminum Intake Manifold

Fuel Recommendation: 91+ Octane

Firing Order: 1,8,7,2,6,5,4,3

Recommended Oil Filter: BPPB160

Recommended Break in Oil: BPP710

Recommended Oil: BPP10W30

Notes: Not for EGR Universal fit oil pan, drive by wire throttle body and matching throttle pedal. Also includes sensors, coil packs and wiring harness, and a new ECM with our custom tune installed.

Header Partners: 
Click here for our Header Partners and recommendations.

Click here to download a copy of the Installation Guide that came with your BluePrint engine.

BETTER THAN THE REST.

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.

For a detailed overview of our warranty, click here.

IT ALL COMES DOWN TO RESULTS.

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That's precisely why our engines sound and run better than our competitors.

BRAGGING RIGHTS INCLUDED!

A comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. No more guessing or wondering what your installed engine's real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash 'em your dyno results!

This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

RECOMMENDED PRODUCTS:
BluePrint Engines Crate Engine Break-In Oil — 1 Quart
BluePrint Engines 10w30 Engine Oil - 1 Quart
TrueBlue Performance Octane Boost
BluePrint Engines TrueBlue Performance Octane Booster
BluePrint Engines TrueBlue UltraCool Antifreeze Coolant CONCENTRATE
BluePrint Engines TrueBlue Power Steering Fluid
BluePrint Engines TrueBlue Transmission Fluid UNIVERSAL ATF/MTF
Gen IV LS and 2009+ Gen III Hemi Compatible Oil Filter
EFI Billet Aluminum Fuel Pressure Bypass Regulator - 40-75 PSI and -10AN ORB - Black
Liquid Filled Fuel Pressure Gauge - 0-100 PSI
Muscle car swap LS and Hemi Universal Air Intake Kit
EFI Fuel Pump and Plumbing Kit BPP5267 - For Fuel injected engines
BluePrint Engines EFI In-Tank Retrofit Fuel Pump - 450 LPH - Return Style
GM LS Compatible Water Neck – 45°. For 2.25 DIA LS thermostats with 2.45 overall height
BluePrint Parts – GM LS2 Compatible Water Neck – Straight. For 2.25 DIA LS thermostats with 2.45 overall height
GM LS3 Compatible Water Neck