I see the manual shows an oil dipstick length of 16-5/32" for a 330 ci - see attached PDF, the one i have is 17".
i don't find any 330 ci dipsticks on searches.
are there other engines that have the same dipstick, like a 1968 350 ci?
any suggestions on where to find one? except Ebay for $125.

 

What I would do is fill the crankcase and filter with 4 qts of oil and fire the engine. Mark the level on your dipstick with a file. Add a 5th qt, let the oil settle and mark that level with a file on your dipstick.

 

^^^This, but I'll just add that after firing the engine briefly, let it sit for 10-15 minutes to allow all the oil to drain back into the pan. Mark and repeat with a full five quarts.

 

I may have a nos 330 one around somewhere, I'll need to look. What part number do you want?

 

indicator part numbers are
384999 330 w/o cruise control
397868 330 with cruise control

 

As long as the tube and dipstick are a matched pair, does it really matter? Obviously a longer dipstick in a short tube would show full with less oil, going the other way would show full with too much oil.

 

Great suggestion, thanks Eric.

 

384999 330 w/o cruise control

 

thaks again Nick

 

Hi Koda,
I’m interested in a 384999 67 Olds dipstick if you still have it. Especially if NOS or in great shape Let me know cost.

Thank you,
Don

 

That is if 1967cutlassHT doesn’t want it.

 

Hey Donolds, you can have that dipstick if you want. i will check mine using the 4 qt then 5 qt oil change first.

 

Measured from the top ring on the indicator
Full is 13 3/4
Add is right between 14 7/8 & 14 15/16

 

good info, thanks Nick

 

I need to find the damn thing first, I'll get back to you.

 

Thank you!