Seller incorrectly states that this is a flathead; it does have an f-head.
https://nashville.craigslist.org/cto/d/mount-juliet-53-willysjeepall-original/6996966965.html
“53 WILLYS..
ALL ORIGINAL..
FLAT HEAD 4 CYL..
STORED IN BARN SINCE 1991 AND FARM USE BEFORE THAT..
GREAT ONE TO RESTORE”