Jay,

I wouldn't call myself a bonified expert, just a guy who is familar with both planes (and a "few" others). I have about 200 pictures of each and comparing the cowl shots, the differences are noticable. Longer portion of the cowl infront of the bumps on the Cessna, the radius is different and the front opening is different (smaller).

P1 Shows how the rocker arms fit into the cowl bumps on the Cessna 195 (looking up into the cowl)