I believe "GOSFAST" on here has a plate that goes inside the pan that allows the dipstick boss to be attached positively with machine screws. It is probably something that should be considered.
I’m having no luck finding this part. Vanpelt shows it as part number 8BA-6751 for a 1951 flathead V8. It is the potmetal piece that is attached to the oil pan by three rivets. Any suggestions?
I just recently got an email message from Bob Drake saying he was reproducing these oil dipstick tube mounts. The pictures included with the email show the standard version, and the version with a threaded holes for an oil return line. Not sure if the message said they were coming soon, or already available at a cost of about $32.00 each. I think gasket and rivets will be included....but I think I would go with the internal plate with three threaded holes, and SS screws, + lock washer's.
Fred from Southside Obsolete sells NOS ones for $20.00.
Don't pay more for off shore junk when you can get the real deal for less.
Could closed end "POP" rivets be used to fasten the boss to the pan? They are liquid tight, would compress the gasket and come in all sorts of sizes. There would be no need to remove the oil pan if the engine was still in the car.
https://www.hansonrivet.com/rivets/blind-pop-advel-rivets/closed-end-blind-rivets/
Reach out to Michael D. @ Third Gen. Auto in post #14.