Edelbrock 49557 Edelbrock/Musi 555 RPM XT EFI 723 HP

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