fletcho5
Member
- Dec 22, 2012
- 34
- Boat Info
- 1987 amberjack hardtop, 1 ton v10, garnim4210, autopilot, espar heating,
- Engines
- twin v6 550 hrs
has any one repowered there 270 amberjack with 4.3s to 5.7s and what are the problems if any.
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Unmodified, standard, carbureted 5.7s are typically 260HP. A very common package with the Merc Alpha drive. If he was going to Magnums, Bravo I's would be in order as the Alpha is only good for about 300HP. However, SEI claims their SEI106 will handle more than 300HP but he would still be changing the drives but at least the Gimbal Housings would stay the same and accept the SEI drives.Are your current outdrives strong enough to handle the additional power? Potentially 300 hp depending on which 5.7 you choose?
Fletcho, a friend of mine has a 268 Sundancer, not sure what year, but he has spent a FORTUNE upgrading it. New genny, new air conditioning system, bow and stern thrusters, complete new interiors, etc. He says he's in the boat about $90K and knows it's worth about $20-$25K but he's got more money than anyone ought to have and he doesn't care. I want to buy his boat when he's ready to sell it.I figured this would run close to 20,000 but to replace the boat new would be outrageous. This would make the boat like new. Have already done interior, dash with new 12" Garmin and new gauges,electronics with tower, swim platform, polished the whole boat,windows and cabin walls, and bottom paint. Would be all in about 45,000 in a 270 amberjack with hardtop kind of made sense to me.
Now that is a good idea....If you are replacing gen 1 with gen 2 drives, the whole transom assembly also requires replacing. Pretty much everything from belts to props. As far as the outdrives go, you may want to consider the bravo line as well. Only have to drill 2 holes and add engine mounted raw water pumps. They are rated for 400 hp I believe. If you can find a couple "take outs" from outboard conversions that were behind small blocks, they will make a much more solid combination. Just another thought for you.
I did this a couple years ago for about $3000 (Can) with a B2. Included new OEM gimbal brg, u joint, bellows, shift cable, senders, paint and some elbow grease.
I have an SEI106 outdrive on my 1985 Cobalt. That boat lived in salt water in Long Beach it's entire life minus the last 2 years I have been restoring it. The drive was 2 years old when I pulled the boat out of the water and moved it to Northern Cal and then here to Southern Louisiana. When I pulled the boat the drive looked fine. Nothing unexpected. Some very slight surface corrosion. A little sand paper and a rattle can of Phantom Black and it looks good as new.any opinion's on the quality of the sei,s to include the paint and saltwater I heard there not good in saltwater.