Re: Engine Manufacturer
Welcome to Iboats, Keith!
A 50hp Sea King ought to be a Chrysler (just formerly West Bend). Up until about '64 Montgomery Wards got their Sea King engines from Gale, A division of OMC. You're probably familiar with OMC's other brands Johnson and Evinrude. But Gale only sold them a 40hp (2 cylinder) and a 60hp (4 cylinder). After that, Chrysler supplied the engines. So you can be reasonably sure you've got a '64 or '65 Chrysler built 50hp (2 cylinder) engine there.
I don't know what's good in a Chrysler manual, hopefully others can comment on that. You might want to check out
www.chryslercrew.com in the mean time though.