chevy oil dip stick tube length

my oil dip stick is reading over fill on late 70s 250 chevy!? I think i put the 60s tube on the 70 block? So at 4 and a half quarts whats the length of the tube? Or i just cut one to fit the dip stick!?

I had a 350 small block with same problem, after putting in 5 quarts my dipstick showed it a quart low. It was a aftermarket chrome tube and stick so I figured it had to be off. I cut the tube so it read full at 5 quarts.

Yes so i just order a tube i hope will be the right length or i can cut down!? It seems depending on the year some were 4 quarts others were 4and a half!? and the dip stick by the fuel pump (shallow end) or near the oil pump screen the deep end or the oil pan!? i must have change the tubes ??? damn it

Okay the original 65 & 66 van tubes are ~ 6/3/4" - shorter than the later cars etc.

I suspect you may have P/N 3828073 which is 8-31/32" long.

On your dip stick what is the distance from the stop (where it mates to the top of the tube to either Full |          | ADD     marks.

This is my 250 system,,,tube sticks up 3 1/2", dipstick is 10 1/2",,,,,,I dont  know that the oil pan, dipstick and tube are all the same on the 194, 230, 250 and 292 engines.

Same dimensions as above for my original '65 230 engine.

                                     Here is my engine and the tube is 5" Length and the dip stick is 12" length and at 4 and a half quarts reads 1" above the full line! And as you can see my oil pressure sender is on the right side of the dipstick?!As far as i know the 230 engine's had a thin wall at the # six cylinder and hair line cracks would mix the oil into the water jacket which is what mine did and so chevy made the 250 in replace of it ?!So i was told because i couldn't fine a 230 block in the mid 80's! In late 80's the Harmonic Damper came lose(the key way) when a friend had a 250 block i had the crank machined and put that in! i look at a chevy nova site on six bangers and they show the dip stick by the fuel pump?!Bottom line if i make the tube 1" longer the stick will be right or shorten the stick at the top by an inch!?

I guess slide a piece of rubber tubing up on the dipstick will raise the dipstick up to read Full.......

Doni: what's your thought on the oil sender being in a different spot than yours?

I think we need to look at all our straight 6 engines and see if anyone has their  dipstick BEHIND the oil sender unit,,,,,,I surely aint never thought about it,,,,,,,but now that you brought it up,,,,,,maybe its a newer engine,,,,,maybe its one of those for one that came with the integral head,,,,maybe its a Canadian engine engine,,,,,,,,maybe its a Mexican engine,,,,,,,,maybe its a Pontiac engine,,,,,maybe its an Oldsmobile engine,,,,,,I'm looking at 4 engines here and all those are forward of the oil sender,,,,not really forward, the tube hole  is right below the sender hole and the tube just leans forward,,,,,,your tube may be in the right place, its the sender thats in a different place,,,,,,,,so lets see if someone can solve your,,,,,,,,,,,,mystery

Yea I call the local dealer and the parts guy was nice enough to investigate the oil capacity on 250 inline! I'm on a Wikipedia sit and it shows G M made all sorts of Inline six's over the years and like you said was it a car a truck and what country? I'm 20 mile's from canada it could be a Acadian (canadian nova)?

The oil pan shape will affect oil level, it might of been changed to avoid hitting steering linkage or cross members on certain vehicles,,,,,just depends if you can live with that little piece of rubber hose lifting the dipstick up to the Full mark,,,,,,,,

Well..... Assuming you have a stock pan and no oil coolers....
I think what I would do is an oil and filter change putting in five quarts of oil...
After running it a few minutes, I'd either re-mark the "full" mark or just make a mental note that what you are seeing in that moment is "actual full"....
Backing up a bit, wen you've poured four quarts in, you can mentally or physically re-mark the quart low mark...

but is 5 Quarts the correct amount? Thats where i started (what is the oil capacity) Some site's say 4 and 1/2 ? i'm reading over full with a12' stick and 5" tube that i saw on a site was what they had? It mite be the oil pan so maybe we need to know it's dimension???

It's four plus the filter which is actually a bit over four in the pan because a filter holds less than a quart....

and i put 4 and 1/2 with a new filter! how did you come up with 4 in the pan?