Has an f-head.

https://portland.craigslist.org/clc/cto/d/great-48-willys-jeep/6745197164.html

“Great ’48. Very clean original stock body. Engine is a Chevy 153 that runs, 40 lbs oil pressure, 12 volt with alt. with a new clutch, pressure plate & throw out bearing. This ’48 also has a roll bar & tow bar. Good solid undercarriage/floors. Two of the four hat channels do have rust (easy fix). Spare tire & rim included. Decent 31X10.5×15 tires. Original vin tag still riveted to frame. Could use better paint, brakes, & gas tank cleaned, plus tinkering.”