Hello..Kevin did u put the recommended 2 qts of oil in ur tank or just fill up to full line? I just did a similar swap in my 335 sportsman with a 425 magnum engine. After scraping the oil cooler and putting the recommended 2 quarts in I now have an oil level 2-3 inches over my full line. Seems to me without the extra capacity of the oil cooler in the loop this may be normal...anyone's input appreciated!

 

Rooster,
I cant remember! I know mine is to the full line, but I honestly cant remember if I used all 2 quarts. I suppose its possible that they have different dip sticks for the 335. When I have more time I can see if the part numbers are different.

As an update, only thing I have left on the wheeler to do it the carb rebuild kit. Over the winter I replaced some bushings, greased all 136 grease ports, and changed the oil, she still runs like a champ!

 

You still alive??? Thought you would have committed suicide by now working on this thing.. The 325,330,425, 500,600,700,800 all take two quarts of oil. The Expedition 425 was a different matter with the internal shifting.. took 5 1/2 quarts!