I repowered a friends 28 t jason a couple of years ago with a 270hp. hyundai seasall diesel with a zf 63a 2.5 to 1 gear reduction. The motor is a v-6. 3800 rpm. Awesom motor that is super quiet and unreal on fuel economy. Full electronics,outriggers, v-berth, swivel rod holders, wynn windows and all kinds of gear. The boat cruises at 19kts and tops out 24 to 25. The boat has around 400 hours on it .Beautiful spotless boat. 85000 obo. owner retiring from tuna fishing. Call me 978-764-6566. Boat is a steal.