Re: what size motor is this
Either the outdrive has been changed or the engine has been changed from a 4 cylinder to the 6 cylinder. The engine is probably 165 or 175 HP. The 4-cylinder would have been 130 - 140 HP. The 4 cylinder engine is a 3.0L. Depending on year, the 6 cylinder would be 230 or 250 Cubic Inches (3.8L or 4.1L). Both engines are GM units.