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air cleaner spacer and stovepipe assembly

Chief Brody

Chief Brody

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Does anybody know what the aluminum air cleaner spacer for the Rochester quadrajet looks like? Mine is in two pieces and I have a feeling that somebody had cut it into two pieces for some reason...should it be one solid piece? :dunno:

Also, does anybody have a real photo (not a drawing) of the warm air stovepipe assembly that attached to the exhaust manifold and sent warm air to the air cleaner assembly? :dunno:
 
A friend of mine has the stovepipe piece (I think, from what you said) on the 350 72 C20 that he swears will do 9 grand.

He doesn't have it in its right spot, its hooked into the pass. side manifold, but he just has it ziptied to the inner-fender.
 
What spacer? I know TBI used a spacer for the PCV(?), but weren't all the Q-jet setups just the air cleaner sitting right on top of the carb?
 
dyeager535 said:
What spacer? I know TBI used a spacer for the PCV(?), but weren't all the Q-jet setups just the air cleaner sitting right on top of the carb?
Click to expand...

Good question. I could have the wrong air cleaner assembly for the Quadrajet.

It looks right...same style....but it could be from an earlier year?
 
Here is what the TBI units used:

I don't recall any spacers on pre-TBI stuff, the air cleaner base is notched to align the air cleaner with the carb as far as I know.

Here you can see the "notch" in the stock air cleaners:

21aeg05.jpg
 
I believe it is the choke that prevents my air cleaner for sitting directly on top of the carburetor
 
I have never seen a spacer factory on a 4 bbl carb,but I have a few off small blocks that had 2 bbl carbs,like the one off a '71 K10 Suburban I had with a 307..
 
Chief Brody said:
I believe it is the choke that prevents my air cleaner for sitting directly on top of the carburetor
Click to expand...

I can't think of a choke that sticks out/up far enough to interfere with the air cleaner. The 80's setups with the electric choke are about the tallest/widest chokes I can think of, and they clear the housing. Then again, if you retrofit an electric choke, perhaps an older air cleaner won't clear...I've not dealt with any air cleaners older than 1981.

Double check what your issue is. The pic I embedded in the previous post shows a generous dish to clear all the garbage routed around, off of, from and to the carb.
 
my air cleaner assembly is the wrong one...

mine doesn't have that notch...wonder where I can find one?
 
AFAIK any of the air cleaners out there for a Q-jet, will fit a Q-jet. I've got an '85 Olds 5L (307) air cleaner sitting on a Q-jet, and the one off a Q-jet carbed truck will fit as well.

Depends on what you are going for, but IMO the later ('81+) setups are better, the inlet is larger, and while the base is the same, there is a "tall" upper portion of the filter housing that came on certain trucks which adds a substantial amount of filtration area. The later setups probably look a bit ridiculous without the stock snorkel hooked up, then again, the one I show above looks a bit...unimposing with the tiny inlet.
 
the one I have is "clocked" wrong...I can get it to sit flat on the carb in two directions...one with the snorkel facing the firewall/heater box, and the other 180 degrees the other way which points directly into the a/c compressor which is in the way and won't let it fit.

So the one I have is for a 4bb, but it might have been for a car...
 
I have never seen a spacer on a Quadrajet. That doesn't mean they didn't use them.

How "stock" do you want it to be? I would just use a newer air cleaner. Does your Blazer have the punchout for the top hat piece in the radiator support?

Martin
 
It's been a long time since I owned the car that ran a q-jet, but I THOUGHT the air cleaner assembly had some sort of riser portion built into the stamping of the steel, not as tall as the tbi spacer height, but still an inch or two raised lip where it sat on the carb surface.

As far as the heat riser, my car had a flex hose looking thing attached to the heat shield on the manifold and there was also an adapter/flapper door thing between the manifold and the pipe that worked with a vacuum controlled temp switch I believe, the burbs tbi uses a similar flex hose piece that just slips on to the heat shield of the passenger side exhaust manifold and runs up to a different flapper door on the intake tube of the air cleaner housing.
 
82355 said:
I have never seen a spacer on a Quadrajet. That doesn't mean they didn't use them.

Does your Blazer have the punchout for the top hat piece in the radiator support?

Martin
Click to expand...

:dunno::confused:
 
Crappy picture, but here is the later air cleaner. See the duct running from the air cleaner to the firewall?

Stockengine.jpg


Martin
 
82355 said:
Crappy picture, but here is the later air cleaner. See the duct running from the air cleaner to the firewall?


Martin
Click to expand...

no...mine doesn't have a knockout for it.

I think I found a correct air cleaner assenbly but it is a little rusty. Also, I have looked all over with Google and there are plenty of aluminum spacers for Quadrajets....so maybe it isn't all that uncommon.
 
Once again, crappy pictures. This is when I switched it over to the other side after doing a serpentine swap.

IMG0164A.jpg


Martin
 
Here you can see where it used to be on the passenger side. Then I put it on the driver's side. I had to knock the punchout out to put it there.

DSCN9424.jpg


Martin
 
I found one on eBay...will bead blast it and paint it...

abc.JPG
 
So you do want the original looking one?

How much are they asking? I could send you one for the cost if shipping.

Martin?
 
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