The engine sounds like a 16 HP cast iron, L-head engine. Go to the Briggs site and type your number in.
I checked, and you have something missing or wrong on the engine numbers. The 320000 series is the 16 HP, I have one sitting in the shop right now waiting for a rebuild, or, waiting for me to go back to work to get the money to rebuild, rather.
You might try here http://www.simpletractors.com/Main/wards_for_1962.htm for more information on your tractor.
or, try www.jackssmallengines.com for parts
Good luck
I checked, and you have something missing or wrong on the engine numbers. The 320000 series is the 16 HP, I have one sitting in the shop right now waiting for a rebuild, or, waiting for me to go back to work to get the money to rebuild, rather.
You might try here http://www.simpletractors.com/Main/wards_for_1962.htm for more information on your tractor.
or, try www.jackssmallengines.com for parts
Good luck