Can someone measure and tell me the length of stock 360 A body oil dipstick and tube please

looking for measurements please of Installed (how much is sticking out of block) stock oil dipstick tube for a 318/360 in an A body. The one in my car is around 9.75” and it may be wrong. My dip stick is Around 21 something inches.

From The fully seated part of the dipstick the full mark is 19.5” down and the add mark is 20” down.

looking for some know accurate examples please