Thread: Repower Options
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Old 06-21-2016, 05:05 AM   #152
FF
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Join Date: Oct 2007
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"if you repowerded your boat , must you change your gearbox too or a adaptation is possible ?"

IF the HP and RPM of the new engine are similar to the old one , and the tranny is in excellent condition , a change is not required.

Most engines will fit up to a standard SAE bellhousing.

They come in sizes 1 (big HP ) to 5 , lawn implement size.

The marine tranny folks use the SAE standards so fitting an engine to your old tranny should be possible.

I would contemplate upgrading to a better tranny like a Twin Disc , which can be had used rebuilt for modest bucks.
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