1996 Mercury Mercruiser 4.3 Liter Specifications – The 1996 Mercruiser 4.3 liter boat motor is designed for use with watercraft from pontoons to smaller family-sized boats. Motors can be combined in pairs to achieve higher horsepower and better power when cutting through the water. Engine specifications show the horsepower available for the two versions of the component built by Mercruiser in 1996.
The 4.3 LX Alpha-1
The Mercruiser 4.3 LX Alpha-1 offers the most horsepower of the 1996 line topping out at 180. The four-stroke, six-cylinder motor features a hydrodynamic design with a gear ratio of 1.81:1. Minimum revs per minute for the 4.3 LX with the throttle wide open is around 4,400 with a maximum of around 4,800. These numbers can vary based on performance and condition of the engine. The spline count for this Mercruiser motor is 15.