So what is the correct Quadrajet for my Olds? Do I use that model #M4MC and some OEM # of 7045183 or 7045184?

 

The Q-Jets for 75 were a one year only carb. I will have to look for the number. There is a different part number for the 350 and the 455. The probably have different jets and metering rods. I have two for 455's and one for a 350. If you are interested in one, let me know. In the meantime I will try and find the number.

 

My book says the 183 is for a 350, and 184. 455

 

Wiped the cobwebs from my memory and those numbers sound correct.

 

Delco #9 shows.......

 

Anybody ever seen one? That is the first I have ever heard of that. But then, I haven't heard everything. By the way, we are getting off the subject.

 

I don't recall any Pontiac V8's being available in any Oldsmobile full size from 71 to 76, maybe I'm wrong?... What is squalling?

 

The book shows #7045251 for the correct quadrajet? But if this is kind of rare, what others would work.?

 

There's a Holly carb on there now. It's working the thing won't idle down correctly with an extra spring on the throttle linkage. I had a previous post about this to see if all these springs were correct (which they are not, but with just the double spring on the foot pedal linkage, it idles at 2000 rpm!!! Prior owner added a 3rd spring that pulls on the throttle to a point on the front of the engine. Rather than have the Holly rebuilt and fixed, I thought I'd try and get an original or a carb that would at least be a Quadrajet!

 

Oldsmobile, 1975-1976, 350"-455", Except Omega & Toronado, R (nationalcarburetors.com)

 

I would consider selling my complete spare 7045183
.

 

Not sure where in Mn you are located, but there is atleast one '75 Quadrajet core listed on CL in Maple Grove.
By the pics in other thread it looks like you have a spread bore Holley now.
Some like them and some dont, but they can be made to work decent.
I myself would opt for the Quadrajet.
Depending on how original you want to get, is it a restore to numbers or if just want a good driver, an era correct 455 core is a good choice or you can opt for a late model APT Quadrajet and get benefits from it.
I believe there is a decent(no experience) builder in Osseo or close to there.

 

I'm uploading pics of the Holly now.

 

 

Keep in mind that if you chose a Quadrajet that is anything other that a numbers correct, I would avoid the '75 version with the single metering rod/jet power piston set up.

 

So al lot of what you are saying is beyond my knowledge but I'm gathering that I should steer clear of the model #7045251 and try and find a model 7045184???
Is that correct?

 

I would contact Cliff Riggles and see which Q-Jet he recommends for you car. Cliff is the Q-Jet guru. I know from a friend that Cliff will not even touch a 75 Q-Jet. I have rebuilt several Q-Jets over the years but failied on my attempts to rebuild the one on my 75 Hurst. I had a really good guy in San Antonio rebuild it and he did a great job but it still has a slight surge in it after it warms up.

 

Just out of curiosity, would the 184 be an 800 CFM?

 

The one listed on CL looks like it could be a 184.
Cant read it real clearly.
I dont know if the 184 is a single rod/jet power piston set up or not.
Cliff(Cliffshighperformance.com) would know for sure and could set you up with good parts and tech.
If it is not a single rod/jet set up it would be a good core.
You would just have to find someone to rebuild it for you that is good.
Plenty around if you ask.
Where are you located in Mn?
I am in Mn and I have some cores, both early and late but cant recall what at the moment.

 

I have two for the 455. One is a core and the other I bought off ebay as a rebuilt carb and could probably be bolted on and run. If you are interested, let me know and I will get some pictures and prices.

 

https://www.ebay.com/itm/275926385774?_skw=7045184+carburator&itmmeta=01J9C SGEEW5YE3YZV8WSZRHR96&hash=item403e7e846e:gfMAAO SwzQ9kna~L&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9 MfhVJKn%2FKiivoBa2wDCsKo7stCvPphCtypuQ677sh4Dx0Gg1 mwUiQElHhxkpJ1yrk%2Bp2ENM7OC9vunXKz1leh3TTXtJ9wqLs wNOmeKy9AaC7F%2BPPetZoB%2FIxf6FvBkSkCH9qy7ccvXKz%2 BojbdNnuDwAeTCAOy%2BH%2FrG3Sw1G3hYhI3N9jIhloS8k7NN zpfiT4smuEGV%2F7BlH9RLheoC24P9PVEedmlECgEpofuLgn2K 4yi3SS6b2ebVpHWlzlUbOVJMY5fYA%3D%7Ctkp%3ABk9SR8Tnw ZnLZA

 

I got an message sent off to him: assume it's Cliffhighperformance.com?

 

Thanks. I think I'll buy it so I can get familiar with this unit.

 

I think I might have one of those in my Oldsmobile stuff. Bug the **** out of me and I'll remember to look. The parts sit with my car 3hr round trip to go but I need to soon to go work on it.

 

Don't make a special trip or anything. I did get one that should work (cheap) so I'm going to try my hand at rebuilding it!

 

Yes. Glenn is correct. For the 1975 model year the VIN R (2bbl, 170 HP) and VIN S (4bbl, 185 HP) Pontiac-sourced 400 was available in the Delta 88 and Ninety Eight cars. Note that this was two years before the Chebby engine fiasco, but no one filed a class-action lawsuit.

 

 

I've wondered about this from time to time, and I'm thinking that there was no fuss in 1975 because Olds said right there in the literature that it was a 400 ci engine. They didn't come right out and say it was a Pontiac engine, but anyone paying attention might know that Olds didn't make a 400 in those years, so any 400 in a '75 Olds had to come from another division. There was no apparent overt attempt to deceive on Olds' part. Olds never said one way or the other who made the engine.

In the 1977 fiasco, Olds deliberately, apparently, concealed from buyers the fact that some of the 350 engines in its cars were not made by Oldsmobile. It was only when owners of these cars brought them in for service, especially if it was to a corner repair shop and not a dealer, that it was noticed that parts specified for a '77 Olds with a 350 engine wouldn't fit. At least, this is the story as I've heard it.

 

Those brochure pages are pretty difficult to read. Here's one of them enlarged. Very minimal mention of the optional engine.

 

This is off a low mileage 75 Delta California car.