rob7113
New Member
what engine and stern drive can be fitted to a 250 sundancer 1987 any help will be appreciated
sun dancer 250
- Thread starter rob7113
- Start date
- Nov 26, 2006
- 7,628
- Boat Info
- 2008 44 Sedan Bridge
- Engines
- Cummins QSC-500's
Straight Drives
Large block or small, and A, B, BII, BIII, and maybe some older ones. A good fit is either a high-tech small block or a basic model large block and any stern drive, but a BIII is recommended for larger motors so you don't spin your wheels. Are you sure you want to put that kind of money into that kind of boat in this buyer's market?
mwph
Well-Known Member
- Jul 8, 2008
- 3,229
- Boat Info
- 1998 250 DA
- Engines
- 7.4L, B3
I agree with John on the money issue however, it looks like he is currently "boatless" and may have found the 87 for a song.
Last edited:
Nehalennia
Well-Known Member
- Aug 22, 2007
- 10,006
- Boat Info
- 2001 310DA twin 350 MAGs, Westerbeke 4.5KW
- Engines
- Twin 350 MAG V-drives
What was or is in there now? If it's an OMC you may be better off going with a Volvo package.
My brother's '87 Seville(19') has an older Merc OD pre-Alpha, but I'm not sure on the bigger models if they had an OMC offering then.
My brother's '87 Seville(19') has an older Merc OD pre-Alpha, but I'm not sure on the bigger models if they had an OMC offering then.
Sundancer
Well-Known Member
- Jul 20, 2005
- 2,909
- Boat Info
- 34 year old CLASSIC 300 DA, towed almost anywhere behind the Duramax Dually Crew Cab.
- Engines
- 16 cyl, 700 cu. in./Alpha I's
The common engines were either a 350 or a 454 mated to an Alpha I. Anything else will probably require a big make over in the transom to handle the changes. Stock would be easier!
Isn't the Alpha a bit marginal with a big block on that size boat?
I was thinking about doing a 350Mag Bravo III swap on my boat when it comes time to re-power. Probably overkill...
I was thinking about doing a 350Mag Bravo III swap on my boat when it comes time to re-power. Probably overkill...
Sundancer
Well-Known Member
- Jul 20, 2005
- 2,909
- Boat Info
- 34 year old CLASSIC 300 DA, towed almost anywhere behind the Duramax Dually Crew Cab.
- Engines
- 16 cyl, 700 cu. in./Alpha I's
The Alpha is fine on the 250 and barely adequate on the 268. There were a lot of those 268's made with the 454 and some are still out there today. I wouldn't recommend firewalling the throttles with them however! Our 250 DA still had the original drive and no problems after 20 years.
rob7113
New Member
Hi thanks for the replys, it is a boat i am looking at that has no engine fitted, I believe it had an v8 chevy petrol fitted.
