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1980's Johnson/Evinrude 20/25hp conversion to 30hp with pics
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<blockquote data-quote="Edstrossner" data-source="post: 373902" data-attributes="member: 15774"><p>Has anyone tried using different cylinder heads for the 25hp? </p><p>There are 4 different part numbers. </p><p>1980-81---324319</p><p>1982-------327672</p><p>1983-89---327671</p><p>1990-------335655</p><p>The 1982 head is supposed to be the best.</p><p>1990 and up is the low compression head.</p><p>But, how good are the other 2 heads?</p></blockquote><p></p>
[QUOTE="Edstrossner, post: 373902, member: 15774"] Has anyone tried using different cylinder heads for the 25hp? There are 4 different part numbers. 1980-81---324319 1982-------327672 1983-89---327671 1990-------335655 The 1982 head is supposed to be the best. 1990 and up is the low compression head. But, how good are the other 2 heads? [/QUOTE]
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1980's Johnson/Evinrude 20/25hp conversion to 30hp with pics
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