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Edelbrock 49550 - Edelbrock Musi 555 RPM XT Crate Engines

Edelbrock 49550 - Edelbrock Musi 555 RPM XT Crate Engines

JEGS Part Number: 350-49550

Edelbrock/Musi 555 RPM XT Carbureted Crate Engine
  • Chevy 555 (Big Block)
  • 676 HP, 649 ft/lbs
  • Victor 454-R Jr. Manifold
  • Water pump not included
      $15,012.13 Order Today Ships 12/10/15

    Edelbrock 49550 - Edelbrock Musi 555 RPM XT Crate Engines Details


    The carbureted package includes a Victor Jr. intake manifold and 800cfm Thunder Series AVS carburetor. It delivers an incredible 676 horsepower and 649 ft./lbs. of torque.

    After detailed assembly and dyno testing, you can rest assured that each motor was constructed by hand with the utmost quality and care by Pat Musi, applying 37+ years of big block Chevy experience.
    2 year/unlimited mileage warranty.


  • Displacement: 555 c.i.d.
  • Horsepower: 676
  • Torque: 649
  • Compression Ratio: 10:1
  • Bore/Stroke: 4.560" x 4.250"
  • Max Recommended RPM: 6500
  • Block: Dart Big-M 9.8"
  • Crank: Scat forged steel 4.250"
  • Pistons: JE forged
  • Rods: H-beam
  • Camshaft: Rollin Thunder Hydraulic Roller
  • Rocker Arms: Crane 1.7:1 Roller
  • Cylinder Heads: E-CNC (350-79559)
  • Intake Manifold: Victor 454-R
  • Carburetor: Thunder Series 800 cfm
  • Distributor: Mallory
  • Oil Pan: 6-Quart
  • Valve Covers: Cast Aluminum


    Edelbrock/Musi 555 crate engines are a powerful big cubic inch package that feature the all new Edelbrock E-CNC cylinder heads for the ultimate in Edelbrock performance. E-CNC cylinder heads are fully CNC ported to achieve optimal air-flow for maximum horsepower and torque in high-performance street and light-duty racing applications. They feature exhaust port exits in the stock location, which allow for the use of off-the-shelf headers. They are available in three options: carbureted and with Pro-Flo 2 or Pro-Flo XT electronic fuel injection. Each engine is assembled by 8-time Pro Street World Champ Pat Musi. They all deliver maximum HP and torque on 91 octane.

    Edelbrock 350-49550

    Fuel Delivery
    One Carb
    RPM Power Range
    Compression Ratio
    10.0: 1
    Engine Make/Size
    Chevy Big Block 555
    Manufacturer's Part Number:
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