I own a 1968 55hp Chrysler Sea King. Model #VWB27955A; Serial #76X10105.<br /><br />I am looking at another 55hp Chrylser Sea King for parts. There is no manual. It looks identical to the one I own. Model #VWB27256; Serial 20385. <br /><br />Can a year be determined for this motor by the model and serial number alone?<br />Would it be compatible with my motor?<br /><br />Thanks.<br /><br />Brusay