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Edelbrock Performance Automotive
Home > Crate Engines > Big Block Chevy Crate Engines
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Edelbrock/ Musi 555 RPM Carb (676 HP)
Edelbrock/ Musi 555 RPM EFI (697 HP)
Edelbrock/ Musi 555 RPM XT EFI (723 HP)

Edelbrock High Performance Big Block Chevy Crate Engines

Edelbrock/Musi 555 crate engines are a powerful big cubic inch package that features 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 allows 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 horsepower and torque on 91-octane and are available in three performance levels, including 676 hp, 697 hp and 723 hp.
    Available carbureted or EFI with Edelbrock:
  • Top-of-the-line Thunder AVS carb and Victor Jr. manifold
  • Fully CNC'd E-CNC aluminum heads with swirl-polished stainless steel valves
  • Pro-Flo 2 or Pro-Flo XT EFI systems
  • Dyno-matched Hydraulic Roller camshafts
Edelbrock/ Musi 555 RPM Carb (676 HP)
EDELBROCK/MUSI 555 RPM CARB (676 HP)

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.
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Edelbrock/ Musi 555 RPM EFI (697 HP)
EDELBROCK/MUSI 555 RPM EFI (697 HP)

The Edelbrock/Musi 555 RPM Pro-Flo 2 is complete with Pro-Flo 2 electronic fuel injection and is assembled with intake manifold, fuel injectors, fuel rails and throttle body, electronic engine control unit (ECU), handheld calibration module, high quality billet distributor, complete harness, fuel pump, fuel hose, hardware and software.
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Edelbrock/ Musi 555 RPM XT EFI (723 HP)
EDELBROCK/MUSI 555 RPM XT EFI (723 HP)

The Edelbrock/Musi 555 Pro-Flo XT is the most powerful package in our line and features our powerful Pro-Flo XT electronic fuel injection. The Pro-Flo XT EFI system consists of a newly engineered intake manifold with a unique design that delivers more horsepower and torque than a traditional single-plane intake manifold. The system also includes fuel injectors, fuel rails, fuel pump, throttle body, electronic engine control unit (ECU) and handheld calibration module. This engine can be fine tuned with the handheld calibration module or with a laptop.
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