in/outboard exhaust


Old 06-23-09, 12:19 PM
Thread Starter
Join Date: Jun 2009
Location: Mass
Posts: 1
in/outboard exhaust

I have a 351 sea water cooled. do I need to run the exhaust through the outdrive or can I make it a through hull set up
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Old 06-23-09, 06:09 PM
Join Date: Jul 2008
Location: Montgomery MN
Posts: 541
It can be run through the transome but it's a lot of work. The y pipe that the exhaust exits now must be blocked off at the transome so the motor must be pulled. Then it's a mater of ducting the exhaust through the transome. That would be a short list I'm shure there will be more obsticals as you go.

Some boats have a electric switch that selects were the exhoust exits transome or outdrive.

Check the laws in your area in MN the switchable exhaust is not leagal and they watch for it.

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