[Held for Ransom]

More...

[Formulabruce]

Thanks HFR!. I know I have been confusing the 73 and 4 for a while now. Great Pics!

[thefirebirdm@n]

Would have loved to have helped on this one but my '73 did not have a factory base.

[The Boss]

Originally Posted by Brewster

Mike is this the shaker your looking for?

We're going to need more pictures. How about from the top down & from the bottom up.

[Brewster]

Ahhh, the guy watching these parts would NOT have dug that. I think he was worried about getting Top Dollar or something???

[The Boss]

Well you gotta have the bucks if you want to get the best parts.

['ol Pinion head]

Thanks for deciphering this Mike!

Is '75 T/A base, same as '76 T/A, or 78-79 W72 T/A

Have a bunch of T/A bases to go through

Originally Posted by Held for Ransom

With the holiday tomorrow and it being too hot to do anything too strenuous, I thought I'd revisit this. Please correct with exceptions. For people shopping eBay, learn here on what questions to ask...

4 barrel Firebird/Formula/Trans Am base will have almost no gap (approx. .16”(1 dime and 2 pennies)) between center hump and straight edge when you lay it across the top. Sensor and carb. vent hole should be across from, not next to, each other.

1973
Has three welded clips for vacuum hoses.
Hole for screw to hold fresh air duct is circular and only on top side.
Sensor is black.
Air flap pin exits to the right.

Trans Am PN decal (Keep your GM car all GM) is located between snorkel and indent.
Measurement between snorkel and air breather hole is 15”.

Formula PN decal (Keep your GM car all GM) is located between air breather and indent.
Measurement between snorkel and air breather hole is 14-1/2”.

1974
Went to four welded clips.
Sensor went to painted black.
Air flap pin exits to the left.

1975
Hole for screw to hold fresh air duct went oval on both sides.
Added a hole in side for vacuum switch.

[REEDRACER]

This is great info! Thanks! I am going to need one for a 73.

[Held for Ransom]

Roger,
I believe a '75 TA base would look like a '75 Formula base with the air breather hole positioned differently.

I think '76 got the added valve in the base bottom. And, possibly, another clip added to the side of the air cleaner.

Also the lid went from the 13-1/8" diam. to the 14-1/16" diam. at some point.

[Held for Ransom]

http://cgi.ebay.com/ws/eBayISAPI.dll...m=251521644958

Someone didn't do their homework...
$300, and with no lid? Suckers born every minute.

['ol Pinion head]

Originally Posted by Held for Ransom

http://cgi.ebay.com/ws/eBayISAPI.dll...m=251521644958

Someone didn't do their homework...
$300, and with no lid? Suckers born every minute.

The seller also seems to be a little confused as to what he's selling. A few examples from his current sale listings.

Following is a '71-72 Formula 400/ Formula 455 D port base
(have a few, not for sale)

http://www.ebay.com/itm/1970-72-TRAN...item3a8fdb4c0a

Following is a '69 or '69 Olds piece (have a few, sale or trade).

http://www.ebay.com/itm/1968-72-GTO-...item3a8fdb6ad7

Note the ribs in the snorkels & the position of the crankcase filter on the base 442 aircleaner. '68-69 Pontiac & '70 Pontiac, the Buick single snorkel, & the '68-69 Olds versions are ALL different from each other.

[2manyT/A'S]

Originally Posted by Held for Ransom

http://cgi.ebay.com/ws/eBayISAPI.dll...m=251521644958

Someone didn't do their homework...
$300, and with no lid? Suckers born every minute.

Irregardless of the price paid....it seems to be a pretty nice piece

Finding ones that haven't had water sitting them for years is not easy....around here,anyways....

[rexs73gto]

I have a question about the air cleaner bases to. I have a base that I think it cake from a T/A but not sure. I've had it for a LONG time. It is the typical 16" base with a single snout. The end of the snout is about 3 1/2 inches wide on the end & it has 4 of the vac. hose clips , with the indentation on the side of it (where the dist sits) Has a place for 2 sensors on the inside of the base, 1 is for a sensor with a single hole post, & then 1 with 2 posts , both would come through the base for vac. lines to be attached. Also has the 1/2 or so hole for where the air port on the top of the cabs would come through it. Can anyone tell me what this base should fit. The smaller snout end is what is confusing me. As i said I've had this for a long time & am not sure about it. Any help ?????

[2manyT/A'S]

Originally Posted by rexs73gto

I have a question about the air cleaner bases to. I have a base that I think it cake from a T/A but not sure. I've had it for a LONG time. It is the typical 16" base with a single snout. The end of the snout is about 3 1/2 inches wide on the end & it has 4 of the vac. hose clips , with the indentation on the side of it (where the dist sits) Has a place for 2 sensors on the inside of the base, 1 is for a sensor with a single hole post, & then 1 with 2 posts , both would come through the base for vac. lines to be attached. Also has the 1/2 or so hole for where the air port on the top of the cabs would come through it. Can anyone tell me what this base should fit. The smaller snout end is what is confusing me. As i said I've had this for a long time & am not sure about it. Any help ?????

Whole lot simpler/easier if you post a few pics...............

[rexs73gto]

I'll get a few & have them on tomorrow so you guys can help, sorry for the long winded description but was hoping someone would know from that but I kinda knew I should have had a few pics.

[rexs73gto]

Ok guys here the pics of the air cleaner base that I need help in identifying I have had it for a long time & don't remember what I got it off of. I had it tagged at one time but when I cleaned & painted it , well the tag got blown off in the sand blaster & I need help. Thanks in advance . I don't know if you can tell it does have 3 hols in the side The hole closest to the snout has a hole that looks kinda like a key slot. & it has a baffel in it just inside the snout as in pic 4 . The end of the snout is about 3 1/2 inches wide at the outer end.

[2manyT/A'S]

Don't think it's a Pontiac unless 80-81 non-Turbo 301?

There is no hole for float bowl vent tube so that would eliminate 70-79 350,400 & 455 Pontiacs..........

Perhaps 70's chevy A body,pick-up or van?

[Held for Ransom]

Originally Posted by 2manyT/A'S

Irregardless of the price paid....it seems to be a pretty nice piece

Finding ones that haven't had water sitting them for years is not easy....around here,anyways....

It's nice looking because it's not a Trans Am base (always ask yourself why is there no lid). The crankcase vent tube won't work unless they use/have a non-TA unit. Still too much money, IMO.

[Held for Ransom]

Rex, I'm not familiar with the one you've posted. Maybe a small block chevy unit (they put them in Firebirds too, right?).

[Baron Von Zeppelin]

Sort of doesn't look like it has enough "drop" around carb to be Bird.
Didn't notice any indents for distributor clearance.
dunno what it is