Mercury Mercruiser Marine - PLUS SERIES 540 C.I.D. Mag Bravo Engine (440 HP) (#8M0085999)
Part #: 8M0085999
This product is no longer available.
DESCRIPTION:
The MerCruiser 540 Mag is is the perfect "Powerhouse" Marine Engine that changes the landscape of repowering older, heavier boats. Since General Motors quit producing the 454, 502 and 496 CID engines in full run production many boater's have had trouble replacing the torque of those motors. The 383 cid engines are a great replacement for the 350 Mag MPI and the 310 Hp 7.4L MPI engines but not when replacing the 454 and 502 Magnum motors that produced more torque than the standard 7.4L. The 540 Mag motor is also a great repower option for customers that don't want to spend the additional $'s required with the new EPA regulated MPI equipped engines. The MerCruiser 540 Mag has an incredibly flat torque curve producing 560 ft-lbs of peak torque but the engine makes a minimum 500 ft-lbs throughout the entire operating range.
SPECIFICATIONS
- Part number - 8M0085999
- HP / kW @ flywheel - 440 / 328
- Maximum RPM (WOT) - 4200 - 4600
- Engine type - 8.9L Mercury V-8 iron block & remanufactured heads
- Displacement (CID/L) - 540 / 8.9
- Bore and stroke - 4.50 x 4.25" / 114 x 108 mm
- Compression ratio - 8.6:1 with forged pistons
- Fuel requirement - 87 octane (R+M)/2
- Fuel delivery system - Holley 800 CFM electric choke carburetor, mechanical fuel pump
- Air induction - Single-plane aluminum intake with bronze crossover and pads
- Ignition - Thunderbolt V with knock control
- Alternator amp / Watt - 65 amp / 917 watt
- Water drain system - Multi-point drain - Hand Removable Blue Drain Plugs
- Exhaust system - Iron manifolds with 4" / 102 mm diameter 316 stainless steel dry joint exhaust elbows
- Cooling system - Thermostatically Controlled Raw Water - 143F
- Accessory drive system - Serpentine belt
- Lubrication system - High flow oil pump, copper oil cooler, oil thermostat
- Recommended oil - SAE 25W-50 FC-W synthetic blend racing oil
- Engine guardian system - High coolant temperature, Low drive lubricant, Low oil pressure
- Rocker arms - 1.7:1 stamped steel
- Dimensions (L x W x H) - 34 x 33 x 27" / 871 x 830 x 689 mm Weight (engine only) - 1025 lbs / 465 kg
Compatible Sterndrives
- Bravo One X 1.36:1
- Bravo One X 1.50:1
- Bravo One XR 1.36:1
- Bravo One XR 1.50:1
- Bravo One XZ 1.50:1
- Bravo Three X 1.81:1
- Bravo Three XR 1.81:1
- Bravo Three XR 2.00:1
- Bravo Two X 1.81:1
Installation Drawings
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