1988 (not definitely sure of year) SeaCraft SF 20'

[Jon G]

You need to measure the transom to see if you have a 20 or a 25" transom, I'm not sure of what year they went to the taller one since thats a later boat, The last two digits on your hull ID number that you will find on the transom, right side top will tell you what year it is. Lots of choices for power, kinda depends of what you will be using it for. Running light all the time you can get by with less, wanna go fast with a heavy load? then more is necessary. The Yamaha 130 two stroke comes to mind, along with the Suzuki 140 four stroke as favorites for a good performance/fuel economy balance. If gas money was no object I would have a E-Tec 175 on my boat just so I could go 55 when I wanted to, but gas plays a big part in my budget nowadays and my 140Suzuki lets me run the boat as much as I want its so good on fuel, but I traded that for a low 30's mph top speed. Lots of things to consider when re powering.