The Willys f-head six was used in the Jeepster as well as the light duty pickup trucks and possibly the station wagon as well. So, there's a chance it is the right engine. It would not have been used in any of the Cjs.
If it was in a Kaiser, then that would be a Darrin and the correct carb is the 2094S. I have been told that when in a Willys either the 824S or the 2071S is correct, but I do not know that for sure.
