MerCruiser 5.7 350 260 HP Marine Engine INBOARD

FOR SALE MerCruiser 5.7 350 260 HP Marine Engine INBOARD. This Engine excellent condition, has been tested and great runs.

The MerCruiser 5.7L (350 CID) 260 HP is a legendary, GM-based small-block V8 inboard/sterndrive marine engine. Known for its raw torque and bulletproof reliability, it has been widely used in runabouts, cruisers, and ski boats

Engine Specifications

• Engine Type : 4-Stroke, V8, marinized General Motors (GM) Small Block
• Displacement : 5.7 Liters (350 cubic inches)
• Horsepower : 260 HP (194 kW) at the crankshaft
• Operating RPM Range : 4,400 to 4,800 RPM at Wide-Open Throttle (WOT)
• Compression Ratio : 9.4:1
• Bore x Stroke : 4.00″ X 3.48″ (101 mm X 88 mm)
• Fuel Type : 87 Octane Gasoline

Key Mechanical Features

• Fuel Delivery : Historically featured a 4-barrel carburetor or basic Throttle Body Injection (TBI) depending on the production year.
• Engine Block : Cast iron block and cylinder heads built to withstand heavy marine loads.
• Cooling System : Raw-water cooled or closed-cooling (freshwater) system for enhanced corrosion prevention.
• Ignition : Typically paired with Thunderbolt Ignition systems for maintenance-free reliability.