Re: '89 88hp evinrude spl
freebeetony,<br /><br />In the least you will need to:<br /><br />1. Change the exhaust housing-this is complicated, it requires basically dismantling the entire mid section.<br /><br />2. Change the driveshaft.<br /><br />3. Change the shift linkage.<br /><br />4. Change the water pick up tube-again this is complicated-requires powerhead removal along with #1.<br /><br />All of this as a minimum. I'm not sure if crossflow V-4's were even available in 25". If they were, used parts are going to be rare.