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johnny25 come in.............over.
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<blockquote data-quote="Johny25" data-source="post: 328164" data-attributes="member: 7791"><p>Im not exactly sure what I said in that post but I believe what I meant was that 396788 was not used anymore after 1984 on the 30hp motors. It was used on the 20's and 25s but when OMC went to prop rated HP the 396788 was not allowing enough air flow/volume to get the 30hp rating. That is where the 396790 came into place. Now you have to remember OMC didn't ever come out and say this, I have had to try and figure out through research and parts I have seen personally and measured to come to this conclusion of how they made the 30hp.</p><p></p><p> In 1984 the intake on the 35hp (which became the 30hp in 1985) had an intake number of 391054 which was replaced by 395626 and then again by 396790 so I assume that any of these three numbers and intakes will bolt right on and make your motor into a 30hp. There are other numbers also that will also do this but it takes some digging and research.</p></blockquote><p></p>
[QUOTE="Johny25, post: 328164, member: 7791"] Im not exactly sure what I said in that post but I believe what I meant was that 396788 was not used anymore after 1984 on the 30hp motors. It was used on the 20's and 25s but when OMC went to prop rated HP the 396788 was not allowing enough air flow/volume to get the 30hp rating. That is where the 396790 came into place. Now you have to remember OMC didn't ever come out and say this, I have had to try and figure out through research and parts I have seen personally and measured to come to this conclusion of how they made the 30hp. In 1984 the intake on the 35hp (which became the 30hp in 1985) had an intake number of 391054 which was replaced by 395626 and then again by 396790 so I assume that any of these three numbers and intakes will bolt right on and make your motor into a 30hp. There are other numbers also that will also do this but it takes some digging and research. [/QUOTE]
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