BluePrint Engines 427 c.i. GM LS Compatible - Base Dressed - Fuel Injected (PART #BPE-PSLS42751CTF)

At its foundation lies BluePrint Engines’ high-strength cast iron LSX-style block, built to handle serious performance demands. The LS3 fabricated intake manifold and fuel rail system provides a sleek, high-flow path for fuel delivery, complemented by a modern drive-by-wire throttle body for precise control. Managing it all is the Holley Terminator X Max, offering advanced tuning and seamless integration for street or track dominance. This setup isn’t just built to run—it’s built to roar.

Blocks:

  • 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
  • 4.0695" Bore
  • 6-Bolt Main

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8015
  • 69cc Chamber
  • 2.165" Intake / 1.590" Exhaust Valves
  • 259cc Intake / 102cc Exhaust Runners

Rotating Assembly:

  • Forged 6.125" Connecting Rods
  • Internally Balanced Front and Rear

Included items:

  • LS3 Fabricated Intake Manifold & Fuel Rail - BPP822112
  • Drive by Wire Throttle Body - BPP12191019
  • Retro Fit Oil Pan - BPP81074
  • Water Pump - BPPLS126WP
  • Spark Plugs and Wires
  • Harmonic Balancer
  • Timing Cover
  • Valve Covers
  • Coil Packs
  • Injectors

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

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.

SPECIFICATIONS

Horsepower & Torque600 Horsepower / 530 ft. lbs. Torque
Cylinder HeadsBluePrint Engines LS3 Aluminum Cylinder Heads
Compression Ratio11:1
CamshaftHydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 - 114° LSA - Three Bolt Cam
PistonsForged - Dish - 22cc
CrankshaftSteel Crank - 4.125" Stroke and 6.125" Rods
Fuel InjectionHolley Terminator X Max - Gen IV Complete ECU/Harness EFI System
Fuel Recommendation91+ Octane
Ignition TimingECM Supplied with Calibration
Firing Order1,8,7,2,6,5,4,3
Stall Converter2200+ RPM
Intake ManifoldBluePrint Engines Fabricated Aluminum Intake
Spark PlugCCH9405
Harmonic BalancerNon-Weighted
Flexplate/Flywheel (Not Included)Non Weighted BPP12654640 - BPPLS1611
Recommended Service OilBPP10W30
Recommended Oil FilterBPPB160
Total Oil Capacity with Production Oil Pan, and Correct Filter6 Quarts