In Stock
Edelbrock 49557 Edelbrock/Musi 555 RPM XT EFI 723 HP
incl. 21% VAT (Belgium) · change country
United Kingdom · Ireland · Germany · France · Netherlands · Belgium · Spain · Italy · Portugal · Austria · Czech Republic · Poland · Sweden · Denmark · Finland · Greece · Hungary · Romania · Slovakia · Switzerland · Norway
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
The Edelbrock/Musi 555 is a 9.1-liter, 555-cubic-inch big block rated at 723 horsepower and 652 lb-ft of torque, built around Edelbrock E-CNC aluminum cylinder heads and a 90mm front-mount throttle body feeding a multi-port EFI system. Compression runs 10.0:1 on a forged-steel 4.250-inch crankshaft and forged pistons.
What the EFI system includes
This induction package comes with fuel injectors, fuel rails, a fuel pump, the throttle body, an electronic control unit, and a 7-inch Android tablet preloaded with Edelbrock's E-Tuner app, which connects over Bluetooth to adjust calibration using the ECU's self-learning capability. The camshaft delivers .594 inch of lift on both intake and exhaust, with 242 and 240 degrees of duration respectively.
What ships and what you add
A distributor, oil pan, timing cover, and harmonic balancer all ship installed, and Edelbrock backs this engine with a 2-year, unlimited-mileage warranty. Left for the buyer to source are the water pump, the flexplate and flywheel, spark plugs, and an air cleaner. For the opening 500 miles, Edelbrock calls for a zinc-rich break-in oil, after which switching to a high-performance synthetic is the recommendation, along with premium fuel given the compression and output.
Q: Does this engine need a separate tuner to adjust calibration? No, the included Android tablet and E-Tuner app handle that over Bluetooth.
Q: Is a water pump included? No, that is one of the few components left for the installer to source.
Specifications
| Feature | Details |
|---|---|
| Brand | Edelbrock |
| Manufacturer’s Part # | 49557 |
| Product Type | Long Block Crate Engine |
| Crate Engine Family | Chevy Big Block |
| Actual Displacement | 9.1L / 555 C.I.D. |
| Horsepower | 723 HP |
| Torque | 652 lb-ft |
| Compression Ratio | 10.0:1 |
| Assembled? | Yes |
| Camshaft Type | Hydraulic Roller |
| Cam Lift (Int./Exh.) | .594 in. intake /.594 in. exhaust |
| Cam Duration @ 0.50 | 242° Intake / 240° Exhaust |
| Cylinder Heads Included? | Yes (Edelbrock E-CNC Aluminum Heads) |
| Fuel System | EFI (Pro-Flo 4 XT Multi-Port) |
| Distributor Included? | Yes |
| Valve Covers Included? | Yes (Cast Aluminum) |
| Timing Cover Included? | Yes |
| Oil Pan Included? | Yes |
| Harmonic Balancer Included? | Yes |
| Water Pump Included? | No |
| 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 |
| Supercharger Included? | No |
| Warranty | 2 Years / Unlimited Miles |
| Sold As | Individual Engine |
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 |
GENERAL | |
| Assembled | Yes |
| GTIN Code | 085347495573 |
| Notes | Self tuning multi-port sequential injection. |
| Sold in Quantity | Each |
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Our 2-year warranty covers internal lubricated components, cylinder heads and engine block from delivery, in addition to your statutory rights.
Full terms: 2-year warranty · returns