BluePrint Engines 427CI ProSeries Stroker Crate Engine | GM LS Style | Dressed Longblock with Fuel Injection | Aluminum Heads | Roller Cam

$11,585.00
Part #: PSLS4272CTF

Description

Dyno Tested Warranty
  • HP & Torque: 625 HP / 550 FT LBS
    Compression Ratio: 11:1
    Aluminum Heads
    Hydraulic Roller Cam
    Forged Crank
    Forged Pistons

Block:

  • OEM Block Machined in the USA!
    6-Bolt Main
    4.060" Bored to 4.069
    1-Piece Rear Main Seal

Rotating Assembly:

  • New Forged Crankshaft
    4.125" stroke
    Forged 6.125" connecting Rods
    Forged Pistons
    Internal

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads -PS8015
    72cc chamber
    2.165" intake/1.600" exhaust valves
    259cc intake/102cc exhaust runners

Cam Specs:

  • Roller
    .624 intake .624 exhaust lift
    239 intake 255 exhaust duration
    @ .050, 114 degree lobe sep.

Ignition Timing:

  • ECM supplied with calibration
    Not capable of transmission control
    Transmission controller required

Also Includes:

  • 90mm DBW throttle body
    LS3 intake manifold
    42# injectors and returnless fuel rail
    Harmonic balancer
    Valve covers, retro fit oil pan and timing cover
    Coil Packs
    All sensors required for engine to run
    Spark plug wires & wiring harness
    Gas pedal
    Dyno tested & shipped with results

Warranty:

  • 30 month / 50,000 mile

Notes:

  • This engine requires a non-weighted flexplate/flywheel.
    Recommended Fuel: 91 Octane
    BluePrint Engines recommends a 2200+ RPM stall converter.
    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.
    Part #: PSLS4272CTF

    Description

    Dyno Tested Warranty
    • HP & Torque: 625 HP / 550 FT LBS
      Compression Ratio: 11:1
      Aluminum Heads
      Hydraulic Roller Cam
      Forged Crank
      Forged Pistons

    Block:

    • OEM Block Machined in the USA!
      6-Bolt Main
      4.060" Bored to 4.069
      1-Piece Rear Main Seal

    Rotating Assembly:

    • New Forged Crankshaft
      4.125" stroke
      Forged 6.125" connecting Rods
      Forged Pistons
      Internal

    Cylinder Heads:

    • BluePrint Aluminum Cylinder Heads -PS8015
      72cc chamber
      2.165" intake/1.600" exhaust valves
      259cc intake/102cc exhaust runners

    Cam Specs:

    • Roller
      .624 intake .624 exhaust lift
      239 intake 255 exhaust duration
      @ .050, 114 degree lobe sep.

    Ignition Timing:

    • ECM supplied with calibration
      Not capable of transmission control
      Transmission controller required

    Also Includes:

    • 90mm DBW throttle body
      LS3 intake manifold
      42# injectors and returnless fuel rail
      Harmonic balancer
      Valve covers, retro fit oil pan and timing cover
      Coil Packs
      All sensors required for engine to run
      Spark plug wires & wiring harness
      Gas pedal
      Dyno tested & shipped with results

    Warranty:

    • 30 month / 50,000 mile

    Notes:

    • This engine requires a non-weighted flexplate/flywheel.
      Recommended Fuel: 91 Octane
      BluePrint Engines recommends a 2200+ RPM stall converter.
      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.

      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: PSLS4272CTF

      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: LS3 Car

      Fuel Recommendation: 91- 93 Octane

      Timing (Initial/Total Advance): Ignition timing and spark advance are controlled by Powertrain Control Module

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

      Notes: Recommended break in oil for your BluePrint Crate Engine: BPP710, 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 installe

       

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

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