Description
Edelbrock 49557 Edelbrock/Musi 555 RPM XT EFI 723 HP
The Edelbrock/Musi 555 Pro-Flo 4 XT is the most powerful package in our line and features the Pro-Flo 4 XT electronic fuel injection. The Pro-Flo 4 XT EFI system consists of a front mount 90mm throttle body design manifold with a large plenum and tapered runners that deliver more horsepower and torque than a traditional single-plane intake manifold. The system also includes fuel injectors, fuel rails, throttle body, electronic engine control unit (ECU).
Like the Pro-Flo 4 single-plane application, this engine is ready to run right out of the crate with pre-loaded calibrations. The E-Tuner app uses a Bluetooth wireless connection to communicate with the ECU’s self-learning capability to continually adjust the calibration to get the maximum performance of your engine.
- Displacement: 555 c.i.d.
- Horsepower: 723 hp
- Torque: 652 ft-lbs
- Compression: 10.0:1
- Block: Big-Block (9.8″ deck height)
- Crankshaft: Forged Steel 4.250″
- Pistons: Forged
- Camshaft: Rollin’ Thunder Hydraulic Roller #2264
- Rocker Arms: 1.7:1 Roller #77790
- EFI Systems: Pro-Flo 4 XT #35883
- Cylinder Heads: E-CNC #79555
- Distributor: Included
- Valve Covers: Cast Aluminum
- Warranty: 2-Year / Unlimited Mileage
| KEY SPECS | |
|---|---|
| MFG. Part # | 49557 |
| Brand | Edelbrock |
| Crate Engine Type | Long Block |
| Engine Displacement | 555 cu. in. |
| Compression Ratio | 10.0:1 |
| Camshaft Type | Hydraulic Roller Tappet |
| Cylinder Head Material | Aluminum |
| Carburetor Included | No |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Valve Covers Included | Yes |
| Engine Balance | Internal/External |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | Yes |
| Oil Pan Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | No |
| Harmonic Balancer Included | Yes |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | Yes |
| Wiring Harness Included | Yes |
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