Long time no post but have been a heavy user in the past. I have aquired a 73 VW bus (please don't ask why ) with a Ford V6 conversion. I'm fairly certain is a predecessor to the Ranger/BII V6 but not certain. Is there a place on the block that has casting marks to identify which type?
I do have photos that I can post later but wondering if there is an easy way to tell. What I can tell you from memory is that there is a Ford symbol cast into the front cover (or close to there), distributor on top back, exhaust comes out high in the back.
Sorry for the limited info. I did Google for info but couldn't find anything. If it's easiest just to post a pic, let me know.