Mercury Mercruiser engines

Gas Sterndrive HP 575 SCI 550 hp

It’s a first for Mercury Racing® The HP575 SCi pairs a custom supercharger with fuel injection for greater power and control. You’ll enjoy turnkey starting, smooth-shifting, instant throttle response, and a very broad torque band throughout the engine’s operating range. Boating Benefits The MEFI 3 Electronic Control Module, which provides precise fuel and spark control and unmatched top-end throttle response. A top-quality valve train designed for improved airflow and durability. Custom-forged aluminum pistons. Heavy-duty GM® -forged crankshaft. Custom 256 CID Holley/Weiand Super Charger, matched with a state-of-the-art throttle body fuel injection system, that provides sport boaters with turnkey starting and offers enhanced idle air and spark control for easy docking and exciting driveability A thermostatically controlled, high-capacity oil cooler that raises engine oil temperatures faster and keeps them more consistent. The oil thermostat and a Positive Crankcase Ventilation (PCV) valve that work together to reduce buildup of condensation in the oil. The PCV valve also improves engine idle. 1-year limited warranty. Bravo One XR drive. Exclusive Mercury MerCruiser® service dealer network *GM is a registered trademark of General Motors Corporation.

HP 575 SCI 550 hp Specifications

Propshaft Horsepower:		550 (410 kW)
Full Throttle RPM Range:		4800-5200
Displacement (Litre/CID):		8.2/502
Bore (in/mm):		4.47/113
Stroke (in/mm):		4.00/102
Compression Ratio:		7:50:1
Cylinders:		V-8
Alternator (amps/watts):		60/847
Ignition Type:		Digital
Fuel System:		2 X TBI
Fuel Requirements:		92 Posted Octane (R+M)/2 (98 RON)
Drive Unit:		STD: Bravo One XR; OPT: Dry-Sump Six w/ Huber 600
Length (in/mm):		34/857
Width (in/mm):		34/857
Height (in/mm):		28/713
Weight (lbs/kg):		1162/528
Transmission Ratios		Bravo One XR (standard) - 1.26/1.35/1.5:1 Dry Sump Six (optional) - 1.24/1.35/1.61:1

Standard Features Advanced electronic control module Throttle body fuel injection Custom 256 CID supercharger Positive crankcase ventilation valve Digital ignition system Available with Bravo One XR drive or Dry-Sump Six drive One-year limited warranty for recreational boat use Three-year limited corrosion protection warranty Audio warning system MerCathode® Power steering Multipoint hand-removable drain plugs Remote oil filter Water-cooled fuel system Water/fuel separator Seawater pump material - composite Optional Features Jackshaft (Drive-line and plug-in models available) Engine flush port kit Drive available on Dry-Sump Six Bravo One XR

Visit our other Mercury Marine Equipment

Gas Sterndrives

850 hp - HP900 SC   /   550 hp - HP 575 SCi   /   470 hp - HP500 Bulldog
470 hp - HP500 EFI   /   425 hp - 496 MAG HO   /   375 hp - 496 MAG
350 hp - Scorpion 377   /   320 hp - MX 6.2 MPI Horizon   /   320 hp - MX 6.2 MPI
300 hp - 350 MAG MPI Horizon   /   300 hp - 350 MAG MPI

Drive Options

Dry-Sump Six   /   Bravo One XR   /   Bravo One XZ
Bravo One   /   Bravo Two   /   Bravo Three   /   Alpha

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