Mercury Mercruiser Marine - PLUS Series 383 Mag Stroker Bravo Bobtail Marine Engine (#865108R90)
Part #: 865108R90
This product is no longer available.
** Only Purchase Serialized Mercrusier Engines & Sterndrives from an Authorized Mercruiser Dealer. Your Warranty May Depend on It! **
350 Crankshaft Horsepower - PPT is your source for Mercruiser Marine Engines.
The PLUS SERIES Mercruiser 383 Mag Stroker Marine Engines utilize a completely factory remanufactured longblock in combination with all new accessories. This is the perfect combination due to the latest EPA regulations that require customers looking to repower an existing boat, to either use a new engine equipped with catalyst controls, or use one of these remanufactured PLUS SERIES product options. Select This Link to Read More....Remanufacturing Processes.
It's been 10 years since the 454 Gen VI was in standard production and over two decades since the venerable 7.4L Mark IV was installed in tens of thousands of boats in the 1980's. Parts for these engines are scarce and an affordable small block just hasn't had the same torque to get these heavier boats on plane. Now there is an affordable contender that is a drop-in replacement with MORE torque than the Mercruiser 454 Mag Bravo Carbureted Engine offered. Due the 383 Mag's size, being 150 lighter and offering a Full Roller Valvetrain this is the ideal replacement engine for 350 MAG, 7.4L, and 7.4L MPI engines that power cruisers, small boats and large runabouts.
PLUS Series 383 Mag Installation Drawings
PLUS Series 383 Mag Spec Sheet
Specifications | |
Power | 350 HP |
WOT Operating Range | 4800-5200 RPM |
Engine Configuration | GM Small Block V8 |
Displacement | 383 CID / 6.3L |
Bore | 4.030" |
Stroke | 3.750" |
Compression Ratio | 9.5:1 |
Idle Speed | 600 RPM |
Gasoline | 87 Octane/UP to 10% Ethanol |
Engine Oil | Mercruiser 25W40 Synth Blend |
Engine Control System | Thunderbolt V w/ Knock Control |
Fuel Delivery | 750 Cfm Weber 4v w/ Elec. Choke |
Induction System | Dual Plane Aluminum Intake w/ Bronze Water Corssover |
Charging alternator amp | 65 |
Charging alternator watt | 917 |
Water drain system | Multi-point drain |
Exhaust System | Electro-deposition paint coated warm iron manifold with dry joint 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 |
Pistons | Forged Aluminum Alloy w/Teflon Coated Skirt |
Cranktrain | Forged Steel Rods and 4340 Steel Crankshaft |
Rocker Arms | 1.6:1 Full Roller Aluminum |
Length (in/mm) | 32in / 814mm |
Width (in/mm) | 30in / 740mm |
Height (in/mm) | 22in / 559mm |
Weight (lbs/kg) | 871lbs / 395kg |
Features & Related Products | Analog Controls Analog Gauges Full closed cooling (KIT) Hydraulic / Power steering MerCathode Remote Oil filter |
Compatible Drives | |
Engine Only | |
Engine with Bravo I | 1.50:1 & 1.65:1 |
Engine with Bravo II | 1.81:1 thru 2.43:1 |
Engine with Bravo III | 1.81:1 thru 2.43:1 |
Options | |
Fresh Water Cooling | MercOptFWC-2 |
3" Riser | MercOpt3R-1 |
> Note: This engine does not include a Y-Pipe, Intermediate Elbows, Bellows, Trimp Pump or Steering Actuator
> Select the following link to view the Mercruiser Rigging Products including but not limited to Harnesses, Remote Controls, and Gauges......Mercruiser Rigging Catalog
> Click here to go to the shim kit that is necessary to mount all new Mercruiser bobtail engines.
> 1-Year Factory Warranty or Optional 2 Additional Years of Coverage Available.
> For Hawaii, Alaska, or international shipping prices, please call.
> Specifications and prices are subject to change without notice.