Free help & advice Learn more Hassle-free returns

Gift cards now available Learn more

  • Free help & advice

  • Hassle-free returns

  • Open 7 days a week

Need a better price? Reach out to us at (561) 207-7988 — we're happy to help.

SKU : BLS4279SCTT56

GM LS Compatible 427 c.i. Engine and T56 Manual Transmission - 830 Horsepower - Standard Edition Builder Series - Holley Terminator X EFI System

Prix habituel $45,277.00
Frais de livraison calculés lors du paiement.


Care information

Display general product information or specific product information using metafields.

Delivery and Shipping

Add some general information about your delivery and shipping policies.

Add a stand out message for your customers

Highlight title

Text to highlight a key feature of your product

Description

Overview:

BluePrint Engines unleashes serious LS power with this 427 c.i. Builder Series package, delivering a massive 830 horsepower and paired perfectly with a tough, street-proven T56 manual 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/T56 package is pure, modern muscle, delivered.

Description:  

  • Horsepower & Torque: 830 Horsepower / 800 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
  • Extended Cylinder Skirt
  • Priority Main Oiling
  • 6-Bolt Main
  • 1-Piece Rear Main Seal
  • Improved Water Jacket Design
  • Utilizes OEM LS3 Front and Rear Covers

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:

  • Holley Terminator X Max - Gen IV Complete ECU/Harness EFI System
  • Magnuson TVS Super Charger
  • Upgraded Mototron S107 Injectors
  • Electronic Fuel Injection
  • Coil Packs
  • Valve Covers
  • Oil Pan
  • Drive by Wire Throttle Body
  • Timing Cover
  • Spark Plugs and Wires
  • Harmonic Balancer
  • Water Pump

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:

  • 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
 

    Payment & Security

    Payment methods

    • Amazon
    • American Express
    • Apple Pay
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Visa

    Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

    Product features

    Use this section to highlight specific product features to your customers.

    Product comparison grid

    Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.

    Un tableau comparant 4 produits
    Filtres
    Titre du produit
    Voir les détails
    Titre du produit
    Voir les détails
    Titre du produit
    Voir les détails
    Titre du produit
    Voir les détails
    Distributeur
    DistributeurDistributeur du produitDistributeur du produitDistributeur du produitDistributeur du produit
    Prix
    Prix
    $99.99
    $99.99
    $99.99
    $99.99
    Description
    DescriptionUne description du produit, comprenant des détails tels que la qualité de construction, les matériaux utilisés et les raisons d’acheter.Une description du produit, comprenant des détails tels que la qualité de construction, les matériaux utilisés et les raisons d’acheter.Une description du produit, comprenant des détails tels que la qualité de construction, les matériaux utilisés et les raisons d’acheter.Une description du produit, comprenant des détails tels que la qualité de construction, les matériaux utilisés et les raisons d’acheter.

    Our Collections

    Image banner

    Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.