I have a 1999 EFI Merc 150 Hp. I have achance to swap out motors to a 200hp 1993 Mariner. I have been looking to get some more horse power. My question is would y'all do it? Is it worth swaping the out? The compression is good on the older motor. Mine motor runs great.
Wishin' I was fishin'...
1990 Ranger 374v
1996 175 HP Mariner - Magnum EFI
25p Tempest - A45 model
80 lb 24v MinnKota Maxxum
Humminbird Helix 10
Humminbird Helix 7
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It would depend on the condition of the older engine... but I'm guessing I probably would NOT.
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If the motor is in good Health / i have a 1991 200 Hp Mariner carb on a 20 foot boat and it runs 65 gps all day long . It has been re-built and low hrs since then around 6-7 years ago .
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