I have dipstick tubes laying around, but 70 motors don't have a tube. The stick just goes in the block. If you wanna put a tube style stick in it, I do have some. Let me know, Tony
Some 70's have tubes and some don't. I forget if it's an early/late thing, or a PB vs manual brake thing. It's been discussed here before.
A body cars got the tube with power brakes .they have a curve to them to get around the brake booster
The Brake booster is not in the way of the dipstick,the hole for it is under the the # 7 spark plug and the handle for the dipstick its only 3 inches long,likely easier to take out then the one with the tube.Bruno.
I would be interested in knowing more about if a particular oil tube/dipstick should go with certain combos too. I have had to correct so much on my car that I wouldnt be surprised if I have an incorrect setup. Only thing I definitly picked up is for my 70 455 is THOU SHALL NOT PAINT THE OIL DIPSTICK HANDLE!!!! lol
We have to remember also that it was whatever they had on hand.Running out of one,they used the other.Years ago I bought a 71 S-I hardtop.The seller was a Buick friend.I changed the motor oil and transmission oil.In doing that,I saw what I though was the wrong trainy,it was a W-30,so frantic I called him and said is this a fake S-I,you have a Olds trainy in here.He was the original owner,so he told me I did know what I was talking about.So a while later,in reading the book,Isaw that theyhad a fire at the BB factory and they put the Olds trainy's in a lot of 71's.Bruno.
For A-BODIES with either 400 or 455 Only. 1969 All GS and Sport wagons got the tube, and it had a serious curve towards the front of the motor. This is good thru at least 2/19/69. 1970 Only GS with Power brakes got the tube and the tube is much straighter. I have 2 versions of the 70 assembly manuals but can't read the rev date on the late copy, therefore this is good thru at least 12/8/69. 1971 Again only GS with Power brakes got the tube and the tube was much straighter like the 70. Again I have 2 different assembly manuals and this is at least good thru 8/25/70. (I will also say this, my latest version has revisions until at least 7/7/71, so this info most likely is valid thru the entire 71 model year.) 1972 They started out like the 70 & 71 models with the tube vs non-tube, but do not call out power vs non-power brakes. This would be good thru 3/17/71, which makes sense as that was still in the 71 production year, but............................... later ALL GS got the tubes. There doesn't seem to be any differentiation between power vs non-power brakes, and this started on 7/12/71 thru at least 8/27/71. (That particular 72 assembly manual also has revisions that go all the way to the end of the model year, and came from a Buick Engineer that was supposedly very meticulous with removing old pages and adding the newest revision sheets.) So there you go. Duane Now this is the way we have judged the 69-72 cars, and I imagine will continue doing it this way in the future. I personally would not take into consideration the fact that other production plants "might not have received the memo". (Unless proof of that can be found in the future.)