Jack Mueller refers to Willys or Kaiser-Willys upgrading from the 226 to the 230 Tornado OHC engine. He cites a company date of 6/21/61. Yes, this engine was optional in 1962 Willys trucks. There is factory sales literature showing this. I have not seen evidence of use in the station wagons. Of course, this was used in the new 1963 Gladiator trucks and Wagoneers so it wasn't THAT limited in use. But, let's see if you can find one in use these days. This was a conversion of the old Continental 6 and literature illustrations suggest that it would take little effort to switch out with a 226. I would really like to see someone try this, BUT I suspect the Tornado engine had the shortcomings of the 226 plus a few new ones.