Re Power Specialists

 MerCruiser Engine Plus-Series 357 Alpha 4V

Selling At Dealer Cost $7195

Don’t just repower–power up! The world famous 357 Alpha will breathe new life into your runabout, sport boat or pontoon boat when replacing a 4.3L, 5.0L, or 5.7L engine.
– V-8 Remanufactured Iron Marine Block
– 1-Year Factory Backed Limited Warranty
– 2 Years of Mercury Product Protection Coverage available

Power: 275 HP (205 kW)
Full Throttle Range: 4400-4800 RPM
Displacement: 357 CID (5.8L)
Engine Type: Remanufactured GM V8 Marine Iron Block & Gen+ Heads
Bore & Stroke: 4.040″ x 3.480″ (103mm x 88mm)
Compression Ratio: 9.4:1 with Hypereutectic Pistons
Rocker Arm Ratio: 1.5:1
Fuel Requirement: 87 Octane (R+M)/2
Fuel System: Weber 750 cfm 4V Electric Choke Carburetor & Mechanical Fuel Pump
Induction System: Dual Plane Aluminum Intake Manifold with Bronze Inserts
Ignition System: Thunderbolt V with Knock Control
Charging System: 65 Amp/917 Watt Alternator
Water Drain System: Multi-Point Drain – Hand Removable Blue Drain Plugs
Exhaust System: Iron Manifold with Wet-Joint Exhaust Elbow
Cooling System: Thermostatically Controlled Raw Water – 160 F°
Accessory Drive System: Serpentine Belt
Lubrication System: High Flow Oil Pump
Recommended Engine Oil: SAE 25-40 NMMA Certified FC-W Synthetic Blend
Audio Warning System: Oil Pressure, Coolant Temperature, Drive Lube
Alpha Ratios: 1.47:1 / High Altitude 1:81:1
Dimensions (LxWxH): 32″ x 30″ x 22″ (814mm x 740mm x 559mm)
Engine Weight (lbs./kg.): 871 / 395
Optional Fresh Water Cooling: Dealer Installed Kit
Boat Harness Type: 10-pin

**We can find out how much shipping costs, contact for more info**


MerCruiser® has been charting new waters in sterndrive power for over 40 years. Their current lineup is no exception. They have created powerful big blocks that are SmartCraft™–ready–the 496 MAG and its high-output version, 496 MAG HO — and feature a redesigned exhaust system and an air-actuated engine water drain system. They also designed a 6.2L engine that actually generates more power than the 7.4 liter big block it replaces. And they’ve introduced new, heavy-duty drives for high-performance applications. Innovation after innovation. All to make your time on the water as exhilarating and effortless as possible. And, with models ranging from 135 to 850 hp, you’re sure to find the one that’s right for you.

  • 425hp – 496 MAG HO
  • 375hp – 496 MAG
  • 320hp – MX 6.2 MPI
  • 300hp – 350 MAG MPI    Horizon
  • 300hp – 350 MAG MPI
  • 260hp – 5.7L EFI
  • 250hp – 5.7L
  • 240hp – 5.0L EFI
  • 220hp – 5.0L
  • 210hp – 4.3L EFI
  • 205hp – 4.3LH
  • 190hp – 4.3L
  • 135hp – 3.0L Previous Sterndrive Models
  • 502 MAG MPI
  • 454 MAG MPI
  • 7.4L MPI
  • 300hp – D7.3L D-Tronic
  • 260hp – D7.3L D-Tronic LD
  • 250hp – D4.2L D-Tronic
  • 220hp – D4.2L
  • 200hp – D4.2L LD
  • 165hp – D2.8L D-Tronic
  • 120hp – D1.7L DTI Racing Sterndrives
  • 850hp – HP900 SC
  • 550hp – HP 575 SCi
  • 470hp – HP500 EFI
  • 350hp – Scorpion 377




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Mercury’s brand portfolio includes Mercury outboard engines; propellers; Mercury Inflatable boats; SmartCraft electronics and Quicksilver parts and oils.

Mercury is committed to providing the finest marine propulsion systems and services, integrated electronics, and parts and accessories.

The vision is to be the most respected and revered global marine industry leader, enhancing the consumer’s positive boating experience by providing the finest marine propulsion systems and services, integrated electronics, and parts and accessories.

The mission of Mercury is to serve and satisfy customers in the worldwide pleasure, fishing, high performance, and commercial marine markets through the design, manufacture, and marketing of marine propulsion systems, related products, services and accessories, and specific products for non-marine applications, which provide superior value, thereby assuring sustained global market share growth and profitability.