GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System
GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System
GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System
GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System
GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System
GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System

GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System

SKU: PSLS42751CTFK

GM LS Compatible 427 c.i. Pro Series Engine - 600 Horsepower - Deluxe Dressed - Polished Pulley Kit - Holley Terminator X EFI System

SKU: PSLS42751CTFK

Horsepower & Torque: 600 Horsepower / 530 ft. lbs. Torque

Cylinder Heads: BluePrint Engines LS3 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 - Three Bolt Cam

Pistons: Forged

Crankshaft: Steel Crank - 4.125" Stroke and 6.125" Rods

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

Fuel Recommendation: 91+ Octane

Regular price $16,049.00
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Overview:

This engine build is a masterclass in modern muscle, pushing out a commanding 600 horsepower and 530 ft. lbs. of torque with a crisp 11:1 compression ratio. At its heart is BluePrint Engines’ high-strength cast iron LSX-style block, fortified with forged pistons and a forged crank for uncompromising durability and high-RPM stability. The LS3 aluminum heads and hydraulic roller cam work in harmony to maximize airflow and valve timing, delivering smooth, responsive power across the rev range. Fuel and air are fed through a sleek LS3 fabricated intake manifold and fuel rail system, with a drive-by-wire throttle body ensuring precise control. The Holley Terminator X Max system brings advanced engine management to the table, making tuning and diagnostics seamless. A polished pulley kit adds both function and flair, featuring an LS2-style water pump, a high-output 140-amp alternator, a compact peanut-style A/C compressor, and a Type II power steering pump with remote reservoir. This setup isn’t just built to perform—it’s built to impress, whether you're carving corners or cruising the boulevard.

Description: 

  • Horsepower & Torque: 600 Horsepower / 530 ft. lbs. Torque
  • Compression Ratio: 11:1
  • BluePrint Engine LS3 Aluminum Heads
  • BluePrint Engine Hydraulic Roller Cam
  • BluePrint Engine Forged Crank
  • BluePrint Engine 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
  • 4.0685" 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 Separate

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:

  • LS3 Fabricated Aluminum Intake Manifold - BPP822112
  • Drive by Wire Throttle Body - BPP12191019
  • LS Swap Oil Pan - BPP81074
  • Injectors and Fuel Rail Kit
  • Spark Plugs and Wires
  • Harmonic Balancer 
  • Throttle Pedal
  • Timing Cover
  • Valve Covers
  • Coil Packs
  • Polished Pulley Kit
    • LS2 Style Water Pump
    • 1- Wire 140amp Alternator
    • Peanut Style Air Conditioning Compressor
    • Type II Power Steering Pump with Remote Reservoir

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.
  • The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment.  Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles.

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: PSLS42751CTFK

Fuel Delivery Type: Electronic Fuel Injected

Spark Plug: AC Delco 41-985

Spark Plug Gap: .040"

Harmonic Balancer: Non-Weighted

Flexplate/Flywheel: Non-Weighted

Stall Converter: 2200+

Intake Manifold: BluePrint Engines LS3 Fabricated Aluminum

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. Also includes sensors, coil packs and wiring harness, and a new ECM with our custom tune installed, drive by wire throttle body and matching throttle pedal.

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 10w30 Engine Oil - 1 Quart
$10.95
BluePrint Engines Crate Engine Break-In Oil — 1 Quart
$10.95
TrueBlue Performance Octane Boost
BluePrint Engines TrueBlue Performance Octane Booster
$29.95
BluePrint Engines TrueBlue UltraCool Antifreeze Coolant CONCENTRATE
$22.95
BluePrint Engines TrueBlue Power Steering Fluid
$8.95
BluePrint Engines TrueBlue Transmission Fluid UNIVERSAL ATF/MTF
$9.95
Gen IV LS and 2009+ Gen III Hemi Compatible Oil Filter
$13.95
EFI Fuel Pump and Plumbing Kit BPP5267 - For Fuel injected engines
$499.95
BluePrint Engines EFI In-Tank Retrofit Fuel Pump - 450 LPH - Return Style
$735.95
EFI Billet Aluminum Fuel Pressure Bypass Regulator - 40-75 PSI and -10AN ORB - Black
$129.95
Liquid Filled Fuel Pressure Gauge - 0-100 PSI
$19.95
Muscle car swap LS and Hemi Universal Air Intake Kit
$129.99
GM LSX Compatible Starter – Delco Style - OEM Finish
$159.95
168-Tooth Steel Flex Plate - 1-Piece Rear Main Seal - OEM LS 1-Piece Balance - 4L60E/4L70E - GM LS Compatible
$169.95
168-Tooth Nodular Iron Flywheel - 6-Bolt Crank - 11" or 12" Clutch - GM LS Compatible
$309.95
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | AC | Power Steering | Water Pump | Brackets and Bolts
from $2,499.00
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | Power Steering | Water Pump | Brackets and Bolts
from $2,299.95
GM LS Compatible Front Accessory Drive - Full Serpentine with Alternator | AC | Water Pump | Brackets and Bolts
from $2,299.95