Just for ****s and giggles (motor question)

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navycowboy44

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In my 77 Reinell i have the inline 6 GM engine (165). Say i want to take and put a 350 or 355 in it. Would i have to change anything on the transom? motor mounts?
 
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Tommywalton

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Re: Just for ****s and giggles (motor question)

Ha yep motor mounts for sure. What type of drive? What gear ratio? Dude just buy a v8 donor boat and change it all! Or a donor boat with a gm 350 and try to find the right flywheel and coupler set up. Im sure a inline gm has the same bell housing pattern as a 4.3/5.0/5.7. I did it with a 305 to 350. All the assecories went right on. Hey you could really clown and put a 5.9 cummins in it and listen to turbo whine. I want a duramax in mine
 
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navycowboy44

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Re: Just for ****s and giggles (motor question)

ya my buddy has a 4bt engine sitting around. im big into cummins, i have a 5.9 in my truck sitting at 400hp. love those old engines. people dont realize how much you can do to them when theyre all mechanical. (im a master diesel mechanic and hate electronics) just seein what id have to do to put a small block chevy race engine in it and really suprise people with the ol' 77' cabin cruiser lol I dont know what the gear reduction ratio is. All i saw on the transom was OMC so its an OMC motor and Drive?
 
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Tommywalton

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Re: Just for ****s and giggles (motor question)

I dont know much about those older omc's. But yeah it can be done. Your a gear head too so it would be easier for you. Im a diesel mechanic too but no master! Worked on Detroits, cat and cummins. Mechanical all the way. I love the B model cats and 855's ive got a b model in a 91 pete 379. Little pump work=smoke like a freight train!
 
Bondo

Bondo

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Re: Just for ****s and giggles (motor question)

navycowboy44 said:
In my 77 Reinell i have the inline 6 GM engine (165). Say i want to take and put a 350 or 355 in it. Would i have to change anything on the transom? motor mounts?
Click to expand...

Ayuh,.... You'd need to change everything from the pulleys to the prop, 'n rebuild the engine bed to accept a V-motor...
 
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