Any information on the Engine for "1986 21' Galaxy"

[sptjet90Reflexx]

As said in the title, guy giving away a free boat 1986 21' galaxy in my area however everything is there but the engine. Does anyone know what orginal versions were offered for this boat? We had a 1989 Galaxy back when i was around 9 i know the outdrive was OMC my father thinks it was a v8 ford engine but i just cant find any information on these boats anymore..

any help appreciated, reason im asking is i have a trashed 1996 tahoe with a vortec 5.7l V8 i could throw a carb on if it would bolt up, but like i said i need more information.. thanks again!

 

[mr catfish]

Re: Any information on the Engine for "1986 21' Galaxy"

Not sure about what motor was original in that boat but one thing is the motor from your tahoe will work but you will need to use the original wiring and computer. There's no aftermarket intake that fits on the motor to use a carb and there's no adapters available.

 

[86 century]

Re: Any information on the Engine for "1986 21' Galaxy"

The eng in your tahoe is a chevy 350 vortec pretty much the same as the marine eng of the same year.
There are intakes out there to put a carb on it.
If the boat is compleatly stipped out as far as drive and eng there is a good chance there are other problems.
People do not normaly take working boats apart like that.

The auto fuelinjection will not work it is a closed loop system that needs hot O2 sensors to work properly.

Good luck

 

[sptjet90Reflexx]

Re: Any information on the Engine for "1986 21' Galaxy"

If the boat is compleatly stipped out as far as drive and eng there is a good chance there are other problems.

The drive is there there, and has the gimbal just no motor, i looked online and to convert my 350 to carb i need a intake manifold/carb (at least 600cfm) and a new HEI distributor all together its about 330.00 on jegs.com for new parts. which is still cheaper then a motor. i just dont wanna get this boat unless i know i can mate it to the out drive. im still waiting on a reply as to what out drive it actually has.

 

[Bondo]

Re: Any information on the Engine for "1986 21' Galaxy"

Ayuh,... It could be any 1 of nearly a dozen different motors...

Finding out what the drive is, is a Start...
Then ya need to know it's Ratio...

 

[bruceb58]

Re: Any information on the Engine for "1986 21' Galaxy"

There's no aftermarket intake that fits on the motor to use a carb and there's no adapters available.

That's certainly not true. Tell that to Mercruiser and Volvo who continued the use of carbs on that engine for years later than 1996.

Is the flywheel housing still there? 86 is a weird year because it is the time when the stringer/cobra change occurred.

 

[Don S]

Re: Any information on the Engine for "1986 21' Galaxy"

Post a couple of pictures of your drive, and the engine compartment showing what is left. Gotta' start somewhere.

 

[wagnerz]

Re: Any information on the Engine for "1986 21' Galaxy"

Be sure to check the boat for rot before you even get to the engine.

 

[sptjet90Reflexx]

Re: Any information on the Engine for "1986 21' Galaxy"

Post a couple of pictures of your drive, and the engine compartment showing what is left. Gotta' start somewhere.

yea he just txted me back so hes suppose to be emailing me some more photos.

However new challange. The boat has no title but the trailer does.. i live in Virginia, anyone know how difficult it would be to title a boat here?

 

[sptjet90Reflexx]

Re: Any information on the Engine for "1986 21' Galaxy"

Be sure to check the boat for rot before you even get to the engine.

yea that would come last, he lives 3 hours away in maryland so i dont want to head out there if i couldnt mate my engine to it. im not shelling out for a new motor

 

[Bridar]

Re: Any information on the Engine for "1986 21' Galaxy"

i have a trashed 1996 tahoe with a vortec 5.7l V8 i could throw a carb on if it would bolt up, but like i said i need more information.. thanks again!

Since you are adding up what it would cost to get the "free boat" running, before you take on the project, there's a few more 'costs' you need to consider:

-Flywheel housing & coupler for a 5.7 L (unless there's still one on the boat and it happens to be for a 5.7)
-Engine mounts
-Marine manifolds & risers (and y-pipe unless it's still in the boat)
-Thermostat housing
-Marine gasket set (need to change the existing head gaskets to marine gaskets)
-A 'marine' spec carburetor (you'll be abandoning the EFI unless you can find an entire marine-EFI setup for a 5.7)
-Flame arrestor
-A 'marine' spec starter, distributor, water pump, alternator, & fuel pump (Vortec block may not accept a conventional marine fuel pump)
-Misc throttle & shift linkage mounts, solenoid setup (unless still in the boat)

As you can see, it would actually be easier if you had a blown engine from this boat to transfer accessories from. This doesn't begin to address the question of the status of the outdrive, the hull & transom.

Also, like Bond-o mentioned, you'd need to know the overall gear ratio of the outdrive. If it had a different engine, say a 4 cyl or V6, the ratio will be too far out to use the 5.7 and gearsets would need to be changed.

I'm not trying to discourage you from a project like this. I'm just trying to help you understand what you'd be getting yourself in to. If there's any way you could get your buddy to check the inpututput ratio of the outdrive (or a model number) that would give us an indication of the size of the original engine.

 

[sptjet90Reflexx]

Re: Any information on the Engine for "1986 21' Galaxy"

i appreciate all the feed back, and thanks bridar for your post as well, im probably not going to take on the project due to the fact turns out the trailer its on is actually to small for the size of the boat and the owner is being slow and difficult with getting back on my questions.

just need to find another project with some more parts still in it.

ill be opening up another post for a different boat that is actually a running complete boat