BluePrint Engines 427 c.i. GM LS style proseries dressed engine -. incl. 30 month / 50,000 warranty & Dyno (PART #BPE-PSLS42730CTF)

The LS-compatible platform is the king of street machines—and this BluePrint Engines 427 C.I. Pro Series monster proves why. With the drive-by-wire throttle pedal, sensors, and throttle body included, it’s ready to rip—just plug in, fire it up, and hang on.

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
  • 4.0685" 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:

  • This engine Does NOT come with a Fuel Injection ECU and Wiring Harness
  • LS Swap Oil Pan - Windage Tray - Pick Up Screen
  • BluePrint Engines Fuel Injectors and Rail
  • DBW Throttle Body - BPP12191019
  • Water Pump - BPPLS126WP
  • GM Plastic Intake Manifold
  • Spark Plugs & Wires
  • Harmonic Balancer
  • Coil Packs
  • Sensors

Notes:

  • Does NOT include any engine management/controller.
  • 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.

SPECIFICATIONS

Horsepower & Torque605 Horsepower / 565 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 Recommendation91+ Octane
Firing Order1,8,7,2,6,5,4,3
Stall Converter2200+ RPM
Intake ManifoldLS3 OEM Plastic 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