BluePrint Engines 496CI Stroker Marine Crate Engine | Big Block GM Style | Longblock | Iron Heads | Flat Tappet Cam

$6,210.00
Part #: MBP4960CT

Description

  • HP & Torque: 460 HP / 515 FT LBS
    Compression Ratio: 9.0:1
    Cast Iron Heads
    Flat Tappet Cam
    Cast Steel Crank
    Forged Pistons

Block:

  • Hand picked seasoned block
    Square and parallel decked
    Align honed main bearing bore
    Cylinders honed on computer controlled machine to within .0002 straightness and roundness
    Cylinders are sonic tested for thickness
    4.250" Bored .060" over
    2-Piece Rear Main Seal
    Mech fuel pump provision: Yes
    Standard Deck

Rotating Assembly:

  • New BluePrint Cast steel crankshaft
    4.250" Stroke
    Forged H-beam 6.385" connecting rods
    Hypereutectic pistons
    Internal

Cylinder Heads:

  • GM cast iron oval port cylinder heads with screw-in studs and guide plates
    1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
    polished intake valves, 1.88 swirl polished exhaust valves
    Elgin hardened push rods
    Long slot rockers with postitive lock adjusting nuts

Cam Specs:

  • Cam Type: Flat Tappet
    .544 Intake .547 Exhaust
    226 Intake / 236 Exhaust duration
    @ .050 - 112 degree lobe separation

Ignition Timing:

  • 34 degrees total at 3500 RPM

Also Includes:

  • Marine intake manifold
    Chrome valve covers
    Oil pan
    Brass freeze plug
    Dyno test results shipped with engine

Warranty:

  • 12 month unlimited hour on pleasurecraft only. No warranty on commercial use.
    Part #: MBP4960CT

    Description

    • HP & Torque: 460 HP / 515 FT LBS
      Compression Ratio: 9.0:1
      Cast Iron Heads
      Flat Tappet Cam
      Cast Steel Crank
      Forged Pistons

    Block:

    • Hand picked seasoned block
      Square and parallel decked
      Align honed main bearing bore
      Cylinders honed on computer controlled machine to within .0002 straightness and roundness
      Cylinders are sonic tested for thickness
      4.250" Bored .060" over
      2-Piece Rear Main Seal
      Mech fuel pump provision: Yes
      Standard Deck

    Rotating Assembly:

    • New BluePrint Cast steel crankshaft
      4.250" Stroke
      Forged H-beam 6.385" connecting rods
      Hypereutectic pistons
      Internal

    Cylinder Heads:

    • GM cast iron oval port cylinder heads with screw-in studs and guide plates
      1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
      polished intake valves, 1.88 swirl polished exhaust valves
      Elgin hardened push rods
      Long slot rockers with postitive lock adjusting nuts

    Cam Specs:

    • Cam Type: Flat Tappet
      .544 Intake .547 Exhaust
      226 Intake / 236 Exhaust duration
      @ .050 - 112 degree lobe separation

    Ignition Timing:

    • 34 degrees total at 3500 RPM

    Also Includes:

    • Marine intake manifold
      Chrome valve covers
      Oil pan
      Brass freeze plug
      Dyno test results shipped with engine

    Warranty:

    • 12 month unlimited hour on pleasurecraft only. No warranty on commercial use.

      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: MBP4960CT

      Fuel Delivery Type: Carbureted, 800 cfm *not included*

      Spark Plug: NGK 2817

      Spark Plug Gap: .045"

      Harmonic Balancer: No

      Flexplate/Flywheel: No

      Stall Converter: N/A

      Intake Manifold: Single plane, satin aluminum

      Fuel Recommendation: 91 Octane

      Timing (Initial/Total Advance): Initial timing - 10-16° and Total timing 32-34°

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

      Notes: Recommended break in oil for your BluePrint Crate Engine: BPP710, Not for EGR

       

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

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