SSM 3 TO SSM6 conversion
 

How bad would this be? Would I have to change my engine heights? Transom is not cut yet for drives but exhaust holes are.

Is this completely stupid or worth looking at.

boat will be a lot happier with the 6s you can run a much higher drive height and the boat will get on plane easier also. have converted a number 3 top gun to a number 6 boat. if you have any questions feel free to call. Regards Dan

This is for my 36 widebody. I wonder if anyone else has put 6's on one.

Any differences in set up between wet sump and dry sump as far as engine height ect.

If the drives are plug in style the the drive height determines the engine height . If You are going drive line then I believe you have some latitude .
the 36 wide body is one of my favourite hulls . If you are going to convert you may consider adding a notch to the hull .
post your progress if you proceed with the conversion .
Rick G.

This is what I was trying to determine. My engines are plug in style and I wonder if I keep the engines at the current height how much would that change my current prop height and would it be optimal for a #6. I don't want to do any more cutting on the boat than we already have. This is idea is just due to an opportunity to acquire some 6's at reasonable cost.

I don't want to change engine height as I would have to have new tailpieces made for the headers.

I see Dan posted on this thread . He is a wealth of knowledge . In order to determine whether or not you can leave the engines where they you need to know if the 6 plug in transom assembly is similar in dimension to the 3 , secondly you have to determine the proper X dimension . This is where Dan will be invaluable . You have to compare the dimensions of the 3 to 6 drives . Its not as confusing as I am making it sound . I would guess that a 3 to 6 conversion will more than likely require moving the motors . But it is just a guess as I have never rigged a 6 drive boat Just TRS , 3 and 5 drives . Rick

My memory is a little foggy, but I think ssm 3’s are 24.311 shaft to shaft, 6’s 18.5”.
first find the x dimension of your current setup.
I think on your wide body the 6’s should be even to 1” below the bottom which will equate to 17.5-18.5” x dimension.
if it’s a factory ssm 3 boat, cig put the prop shafts 5-6” below the bottom meaning a 17.3-18.3 x dimension.

Thank you thats what i was looking for. My drives are too deep in my opinion i think they are at least 6" below the bottom.
https://cimg6.ibsrv.net/gimg/www.off...abd165a299.jpg
https://cimg9.ibsrv.net/gimg/www.off...cd77d8998f.jpg

Wow those are low . Rick.

I would put #5’s on extension boxes and call it a day. A lot simpler and the 5’s are pretty stout.