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04-29-2017, 04:32 PM #1Junior Member
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Could someone give me some info mercury powerhead swap
I have a 1999 200hp 3.0 mercury optimax with 215 hrs. I just lost number 6 cyl. I have a lead on a 2000 225hp fully dressed rebuilt powerhead. Can I take off my old one and bolt this one up without any modifications? I would appreciate any information. Thank you
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04-29-2017, 05:00 PM #2
Welcome Is 225 a 3.0 also? or 2.5 Promax?
Rob Lankford
1988 20' Action Marine 2.4 200
Previous owned boats worth mentioning
1976 17' Action Marine 2.4 200
1984 20' Action Marine 2.5 200
1983 17' Hydrostream V-King 2.4 Bridgeport
2003 LPB STV RR COPY 2.5 280 /300 Drag
2005 LPB STV RR COPY 2.5 280
2005 Baja 23 Outlaw 6.2 Mercruiser
2006 FTP Quarter Shot T3 Race 2.5 200 CARB/2.5 225 PROMAX
2009 FTP Quarter Shot T3 Race 2.5 280
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04-29-2017, 05:42 PM #3Junior Member
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It's a 3.0 optimax
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04-29-2017, 05:48 PM #4Junior Member
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04-29-2017, 05:54 PM #5
I believe 3.0 to 3.0 should go together the same of that size and year being so close.
Rob Lankford
1988 20' Action Marine 2.4 200
Previous owned boats worth mentioning
1976 17' Action Marine 2.4 200
1984 20' Action Marine 2.5 200
1983 17' Hydrostream V-King 2.4 Bridgeport
2003 LPB STV RR COPY 2.5 280 /300 Drag
2005 LPB STV RR COPY 2.5 280
2005 Baja 23 Outlaw 6.2 Mercruiser
2006 FTP Quarter Shot T3 Race 2.5 200 CARB/2.5 225 PROMAX
2009 FTP Quarter Shot T3 Race 2.5 280
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Derekhw84 thanked for this post
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04-29-2017, 05:55 PM #6Junior Member
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Ok thank you, I just know mercury did some crazy things in 99 so wanted to make sure.
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04-29-2017, 05:57 PM #7
No problem however im not sure rather fairly confident lol!!!
Rob Lankford
1988 20' Action Marine 2.4 200
Previous owned boats worth mentioning
1976 17' Action Marine 2.4 200
1984 20' Action Marine 2.5 200
1983 17' Hydrostream V-King 2.4 Bridgeport
2003 LPB STV RR COPY 2.5 280 /300 Drag
2005 LPB STV RR COPY 2.5 280
2005 Baja 23 Outlaw 6.2 Mercruiser
2006 FTP Quarter Shot T3 Race 2.5 200 CARB/2.5 225 PROMAX
2009 FTP Quarter Shot T3 Race 2.5 280
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whipper liked this post
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04-29-2017, 06:00 PM #8Junior Member
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I think I posted this in the wrong area, new at this but I appreciate the reply.
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whipper liked this post
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04-30-2017, 05:13 AM #9
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04-30-2017, 06:10 AM #10
There may have been a crankshaft spline change around 2000??? Not sure.
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Derekhw84 thanked for this post
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