Mercury® Remanufacturing
Plus-Series Bravo Sterndrives
Completely renewed to original specs.
357 MAG Bravo 4V
325 Crankshaft Horsepower
Thanks to its size and power, this is the ideal replacement engine for 5.0L, 350 MAG, 7.4L and 454 engines that power cruisers, small sport boats and large runabouts.
383 MAG Bravo 4V
350 Crankshaft Horsepower
Same power and more torque than a 454 HO carbureted engine. This torque monster delivers 429 ft-lbs of raw torque at 3800 RPM to launch even the heaviest boats with authority. When equipped with the same marine exhaust headers as found on the 383 Scorpion®, this engine produces 370 HP and 456 ft-lbs of torque—more than a 502 carbureted engine. This is the ideal replacement engine for 454HO and 502 HO carbureted engines that power cruisers, large runabouts, and sport boats. Marine exhaust headers sold separately.
383 MPI Bravo - Freshwater Cooled
With 350hp and a full closed cooling system that supplies fresh water cooling to the engine and exhaust manifolds, this model is ready to repower 350 & 377 Bravo Horizon and SeaCore engines.
Specifications
Mercury® Remanufacturing: Plus-Series Bravo Sterndrives
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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 drives (application dependent - contact sales or service) - 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
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Part number - 865108R90
HP / kW @ flywheel - 350 / 261
Maximum RPM (WOT) - 4800 - 5200
Engine type - V-8 Remanufactured Iron Marine Block
Displacement (CID/L) - 383 / 6.3
Bore and stroke - 4.03 x 3.75" / 102 x 95 mm
Compression ratio - 9.0:1 with Hypereutectic Pistons
Fuel ethanol tolerance - Up to 10%
Engine control system - Thunderbolt V w/Knock Control
Fuel delivery system - 4V carburetor and electric fuel pump
Fuel injection system / carburetor type - 750 cfm Weber 4V with electric choke
Air induction - Dual plane aluminum intake manifold with brass water crossover
Alternator amp / Watt - 65 amp / 917 watt
Water drain system - Multi-point drain
Exhaust system - Iron manifold with Dry-Joint Exhaust Elbow
Cooling system - 143F Raw Water Bravo with Sea Water Pump & Engine Oil Cooler
Accessory drive system - Serpentine belt
Lubrication system - High Flow 100 psi Oil Pump
Recommended oil - SAE 25W-40 NMMA Certified FC-W Synthetic Blend
Pistons - Forged Aluminum Alloy
Cranktrain - Forged Steel Rods and 4340 Steel Crankshaft
Rocker arms - 1.6:1 Full Roller Aluminum
Dimensions (L x W x H) - 32 x 30 x 22" / 814 x 740 x 559 mm
Weight (engine only) - 871 lbs / 395 kg
Compatible drives (application dependent - contact sales or service) - Bravo One 1.50:1
- Bravo One 1.65:1
- Bravo Three 1.81:1
- Bravo Three 2.00:1
- Bravo Three 2.20:1
- Bravo Three 2.43:1
- Bravo Two 1.81:1
- Bravo Two 2.00:1
- Bravo Two 2.20:1
- Bravo Two 2.43:1
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Part number - 865108R80
HP / kW @ flywheel - 350 / 261
Maximum RPM (WOT) - 4800 - 5200
Engine type - V-8 Remanufactured Iron Marine Block
Displacement (CID/L) - 383 / 6.3
Bore and stroke - 4.03 x 3.75" / 102 x 95 mm
Compression ratio - 9.0:1
Fuel ethanol tolerance - Up to 10%
Engine control system - ECM 555 W/Knock Control & Crankshaft Trigger
Fuel delivery system - GEN II Cool Fuel with Boost Pump
Fuel injection system / carburetor type - Multi-point electronic fuel injection (MPI)
Air induction - Two-piece long runner intake with 75 mm throttle body (80 mm w/DTS)
Alternator amp / Watt - 65 amp / 917 watt
Water drain system - Multi-point drain
Exhaust system - Electro-deposition paint coated warm iron manifold with dry joint elbow
Cooling system - 160F Raw Water Bravo with Sea Water Pump
Accessory drive system - Serpentine belt
Lubrication system - High Flow 100 psi Oil Pump
Recommended oil - Mercury MerCruiser Synthetic Blend 25W-40, NMMA Certified FC-W Synthetic Blend
Pistons - Cast Hypereutectic Alloy
Cranktrain - Powder Metal Rods and Forged 4340 Steel Crankshaft
Rocker arms - 1.6:1 Roller Tip Steel
Dimensions (L x W x H) - 32 x 30 x 22" / 814 x 740 x 559 mm
Weight (engine only) - 932 lbs / 423 kg
Compatible drives (application dependent - contact sales or service) - Bravo One 1.50:1
- Bravo One 1.65:1
- Bravo Three 1.81:1
- Bravo Three 2.00:1
- Bravo Three 2.20:1
- Bravo Three 2.43:1
- Bravo Two 1.81:1
- Bravo Two 2.00:1
- Bravo Two 2.20:1
- Bravo Two 2.43:1