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Re: air grabber difference 383-440
[Re: 70moparmike]
#1317335
10/08/12 03:49 PM
10/08/12 03:49 PM
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DAYCLONA
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Re: air grabber difference 383-440
[Re: 70moparmike]
#1317336
10/08/12 03:50 PM
10/08/12 03:50 PM
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Joined: Dec 2007
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DAYCLONA
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Re: air grabber difference 383-440
[Re: TONY_DAGOSTINO]
#1317340
10/09/12 04:58 PM
10/09/12 04:58 PM
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JohnRR
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Quote:
john thats 100% correct
just for everyone else there that doesn't know, that doesn't hold true for the 70-2 versions of the ag air cleaner
no ???
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Re: air grabber difference 383-440
[Re: mccannix]
#1317344
10/10/12 07:56 AM
10/10/12 07:56 AM
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Posts: 8,160
DELAWARE
TONY_DAGOSTINO
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dont know about that terry that air cleaner was used in 1970, a year before the t-quad was used in 71 on the 340 only i know in 72 it was used on the 400, too but even in 72 a 440 hp used a holley in 70-1 the 383 both had holleys and 70-1 440 HPs had avs carbs i believe, and im sure you know for sure almighty shaker expert that you are  that the 71 340 did use a different shaker basplate then the 70 340 to allow for the t-quads height, but maybe it wasnt as critical on the air grabber as the seal to the base was somewhat flexible??
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Re: air grabber difference 383-440
[Re: TONY_DAGOSTINO]
#1317345
10/10/12 10:02 AM
10/10/12 10:02 AM
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Joined: Jan 2003
Posts: 4,784
Ontario, Canada
mccannix
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Tony
The 70-72 freshair base application shouldn't be confusing as only two were used.
But as I am sure you know, the 70-71 parts book has errors claiming 3512765 is freshair base for BJRW when in fact it is 70 E body 340 shaker only.
They only list one base number, 3418709 for freshair 440 B-body 1971, no mention of a 383 number unless there is a 70-71 book that gives it, or I am missing it.
I had both in NOS at one time but I cant recall the taller base part number.
My 72 book shows no air cleaner listings in 14-29-9 so thats no help.
I'll be the first to admit that I am not familiar with all the carb applications alluded to in the parts books used on 70-72 B-BODY and whether or not the different ones actually were used in production but I know you are an expert in that field as you been involved with many.
I was mainly basing my above statement on height, from this partial Fram print that I dug up.
This was the info supplied to Fram that they deigned the shorter base around.
Note the part number 3577491 will not appear in any parts book as this was an assembly... base, lid and filter shipped to the car assembly plant.
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Re: air grabber difference 383-440
[Re: TONY_DAGOSTINO]
#1317347
10/10/12 03:18 PM
10/10/12 03:18 PM
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Joined: Jan 2003
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Ontario, Canada
mccannix
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Quote:
terry
so if im reading the document you posted correctly
it shows that the t-quad and avs ARE the same height, is that correct?
because the avs was used on both 69 383 and 440 motors
and im sure that the small round air filter is taller, than the large oval air filter, i havent measured them but id guess about an inch different in height, which therefore would explain the height difference in the base
i did just measure a t-quad and ave and they are the same height from the bottom to the surface where the air ceaner sits, so the carbs are the same height
i remember years ago when ken s was at my place looking at 340 shaker baseplates and i thought he was telling me how he thought the 71 tquad base was a different height then the 70 avs base
Yes the thermoquad and the AVS both measure 3 1/4 height but the thermoquad was factory installed with the thick base gasket that the AVS does not use which accounts for a height difference.
The Fram CA305 ( Chrysler PN 2863349 ) is not taller than the oval Fram CA332 ( Chrysler PN 2863186 ) as both measure 3 1/8.
Pictured are both.
And yes there are two different 340 shaker bases, the 71 short one 3512765 which was the same as the rare, seldom seen 440-4V shaker base and the taller 3512764 1970 340 base.
383 shaker base is taller again than the 1970 340 base.
And yes the AVS was used on both 383 and 440 in 69 but the 383 used the deeper neck of the two bases.
My guess would be because the intake manifold is a bit shorter on the 383 than the 440 or it could be a hood to base seal issue.
If you have one of each manifold, perhaps you could check for us Tony.
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Re: air grabber difference 383-440
[Re: mccannix]
#1317348
10/10/12 06:11 PM
10/10/12 06:11 PM
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JohnRR
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Quote:
And yes the AVS was used on both 383 and 440 in 69 but the 383 used the deeper neck of the two bases.
My guess would be because the intake manifold is a bit shorter on the 383 than the 440 or it could be a hood to base seal issue.
If you have one of each manifold, perhaps you could check for us Tony.
Terry , the 440 deck height is roughly .750 taller than the 383/400 and that subsequently put the carb about a 1/2" higher on the 440, that's the reason for the different air cleaner base depths .
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Re: air grabber difference 383-440
[Re: JohnRR]
#1317350
10/10/12 10:00 PM
10/10/12 10:00 PM
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Joined: Jan 2003
Posts: 4,784
Ontario, Canada
mccannix
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Quote:
the 440 deck height is roughly .750 taller than the 383/400 and that subsequently put the carb about a 1/2" higher on the 440, that's the reason for the different air cleaner base depths .
Thanks John for the clarification
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Re: air grabber difference 383-440
[Re: PAINT IT BLACK]
#1317352
10/15/12 08:33 PM
10/15/12 08:33 PM
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Joined: Apr 2010
Posts: 398
Texas
70Runnerdude
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Does anyone know how to tell on the 70-72 air cleaner base if it is a repop or original ? Really would like to know before I bite the bullet. Thanks! Dave
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