2001 Volvo Penta 5.7 GSi Marine Inboard Engine

2001 Volvo Penta 5.7 GSi is a 5.7-liter (350 cubic inch) V8 marine engine based on the GM Vortec block, featuring a Throttle Body Injection (TBI) fuel system.

Specifications
* Engine Type: V8, 4-stroke, Gasoline
* Displacement: 5.7 L (350 cu. in.)
* Horsepower: 280 HP (206 kW) at propeller shaft
* Max Engine Speed: 5000 rpm
* Fuel System: TBI (Throttle Body Injection)
* Bore x Stroke: 101.6 mm x 88.4 mm (4.00 in x 3.48 in)
* Compression Ratio: 9.4:1
* Cylinder Block/Heads: Cast iron
* Cooling System: Seawater cooling (with a freshwater flushing system standard on newer models)
* Oil Capacity: 5.5 quarts (with filter)
* Spark Plugs: Platinum-tipped (e.g., NGK ITR4A15 or AC Delco 41-101)
* Spark Plug Gap: ~0.060 in. (1.5 mm) or specific to the spark plug manufacturer's recommendation.

Key Features:
- ECM Monitoring: The TBI system is monitored by an Electronic Control Module (ECM) for responsive acceleration, reliable idling, and improved emissions control.
- Corrosion Protection: The engine features a corrosion-protected marine electrical system and EDP-treated exhaust manifolds and risers for increased durability.
- Diagnostics: The system includes self-diagnostic capabilities, engine knock control, overspeed protection, and rpm reduction for low oil pressure or high engine temperature conditions.
- Drive Compatibility: This engine was typically paired with the Volvo Penta Aquamatic sterndrive, often the Duoprop (DP) drive with twin counter-rotating propellers.