Troy,

I'll have to look at my gas tank before I decide if that hole should/can be covered. If the 54 tank has a drain through that hole, I'll use this type of floor seal.

My trucks will soon be in hibernation; but, if you visit your son next spring, send me a PM if you have the time for a brief stop/visit.

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.