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Message: <blockquote data-quote="Johny25" data-source="post: 267466" data-attributes="member: 7791"><p>I agree especially the 50's models  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin    :D" loading="lazy" data-shortname=":D" /> That was the golden age of styling IMO and they were easy to work on. The only down side to these motors pre 85-86 is they did not put out the HP at the prop that the stickers or tags stated. That is why I suggested higher HP for pre 85. I have seen a lot of people buy these pre 85 OMC's and Mercs not understanding that they were really not getting 20hp or whatever the motor's sticker said. Your 66' 20hp is probably putting out 17hp at the prop on a good day (cool weather) and in top running condition (good compression etc.). I have no issues with these older motors, I just go one HP size bigger if I look pre 85 is all.</p></blockquote><p></p>