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can a '67 440 Chrysler "300" have an AVS? UPDATE! #2524566
07/20/18 02:58 PM
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Such as a very late model year build? I was not dressed to do any numbers checking/digging but I did see the AVS air door when he pulled the air cleaner to prime it. Thank you for your time

Last edited by RapidRobert; 07/23/18 01:25 PM.

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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524570
07/20/18 03:02 PM
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Re: can a '67 440 Chrysler "300" have an AVS? [Re: dogdays] #2524583
07/20/18 03:22 PM
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Alright


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524638
07/20/18 05:11 PM
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i don't think so. the avs was a smog era carb and model year 1967 didn't have to meet those standards. all the '67 440's I know of had afb's. there were some 440's with small holleys but i'm not sure which year they were.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524650
07/20/18 05:34 PM
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67 was AFB only, If it had an AVS it was almost certainly swapped. Sure, never say never, but in this case I'll say it until someone can prove otherwise without any doubt.

.02

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524684
07/20/18 07:20 PM
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Just check the number stamped on the base, or if it has a tag under the lid bolt. That will tell everything

Re: can a '67 440 Chrysler "300" have an AVS? [Re: cudaman1969] #2524783
07/20/18 10:18 PM
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The guy says he "knows" it is a 440 & it has at first glance that grungy "original/untouched" look as does the AVS & it has a yellow vac cap on the bowl vent for the hose to the charcoal canister that a 68 car would have. I will check numbers the next time I get over there but the guy says he really doesn't want to come off of it (I may have to put some hundreds in my pocket!). & it is a 2 dr. Thanks guys.


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524804
07/20/18 11:47 PM
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Vacuum cap? No way

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524816
07/21/18 12:25 AM
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Originally Posted By RapidRobert
The guy says he "knows" it is a 440 & it has at first glance that grungy "original/untouched" look as does the AVS & it has a yellow vac cap on the bowl vent for the hose to the charcoal canister that a 68 car would have.


1970 first year for that, IIRC. 2ยข

Robert


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: 3hundred] #2524828
07/21/18 12:51 AM
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Oh OK '70 is the first year for the canister? Yeah I gotta get some numbers. Yes the vac cap has been added. It ran (barely).


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524833
07/21/18 01:00 AM
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After all those years, carb went bad and replaced it with a newer one, simple. In 68 years I have a few things replaced on me too.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: cudaman1969] #2524840
07/21/18 01:38 AM
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Originally Posted By cudaman1969
After all those years, carb went bad and replaced it with a newer one, simple. In 68 years I have a few things replaced on me too.


But an AVS doesn't fit where an AFB has been

Re: can a '67 440 Chrysler "300" have an AVS? [Re: Morty426] #2524849
07/21/18 02:23 AM
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at first glance the only thing that looked off was the AVS (with the bright yellow vac cap!) & if I am reading the responses right that a 67 car (even a late build) could (should?) not have an AVS (which AFAIK is a 68 to mid 71 emissions carb) then all that is left is for me to go back over there in my grubbies & do some digging & get some numbers. (eng number/letter on machined pad by dist/carb #) Thanks guys.


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: Morty426] #2524852
07/21/18 02:30 AM
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Quote:
But an AVS doesn't fit where an AFB has been
Morty are you saying an AVS will not bolt on an OE AFB manifold?


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524872
07/21/18 05:45 AM
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Originally Posted By RapidRobert
Quote:
But an AVS doesn't fit where an AFB has been
Morty are you saying an AVS will not bolt on an OE AFB manifold?


I thought the AFB had a smaller bolt pattern. I have only owned 1 AFB 4 barrel intake and it looks way smaller to me than the AVS manifolds I have

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2524894
07/21/18 09:59 AM
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there's small bolt pattern afb's and large pattern. isn't a '67 magnum intake the same as a '68? were the '66 and down intakes used in '67?

Re: can a '67 440 Chrysler "300" have an AVS? [Re: lewtot184] #2524910
07/21/18 11:16 AM
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it did not have the good HP ex manifolds (so its a 350 horse I am assuming) if that helps.


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525002
07/21/18 02:52 PM
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I don't know about a 67, but according to the 68 fsm and also this rebuild kit instruction sheet say an AVS was used in 68 on 383's and 440's.

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Re: can a '67 440 Chrysler "300" have an AVS? [Re: randavis] #2525005
07/21/18 02:58 PM
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I'll have to go with what Mr. Smith said,no exception !! grin

Re: can a '67 440 Chrysler "300" have an AVS? [Re: 62maxwgn] #2525025
07/21/18 04:38 PM
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After all the love I got on this one, I will get over there when I can.


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525034
07/21/18 05:29 PM
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Just to toss out a complete guess, if it's an AVS I'd bet short odds that it's a 4966s which was a very commonly used as a "one size fits all" replacement.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525048
07/21/18 06:04 PM
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67 and 68 manifolds where the same casting number. There was a discussion on this in another post awhile back. Some AFBs had dual bolt patterns

Last edited by cudaman1969; 07/21/18 06:04 PM.
Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525107
07/21/18 09:42 PM
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All 67s 440s used large bolt pattern, 350 used a Holley, 375 used large bolt pattern AFB.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: ScottSmith_Harms] #2525197
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Originally Posted By ScottSmith_Harms
Just to toss out a complete guess, if it's an AVS I'd bet short odds that it's a 4966s which was a very commonly used as a "one size fits all" replacement.


No no no.

That's a 71 440HP carb

GG says so hop

Re: can a '67 440 Chrysler "300" have an AVS? [Re: BSB67] #2525214
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Originally Posted By BSB67
All 67s 440s used large bolt pattern, 350 used a Holley, 375 used large bolt pattern AFB.


Correct! All 440 engine 67-69 model years used the 2806178 intake manifold. Wide bolt pattern. We are talking M code 440 Cudas to grandmas town and county station wagon, to Mr. Drysdales Imperial convertible. Same intake manifold guys.

1966 and older RB intakes were narrow pattern, all 1967 and older 383's were narrow pattern.

So Morty the 1967 440 is the only AFB car that can take an AVS on the same intake.

Yes it can have an AVS but Chrysler didn't put it there. The 67 300 440 LP 350 horse engine came with a Holley and not very reliable. No surprise it was replaced with an AVS which is more common and with the air door adjustment its very easy to get them to run good.

I've never seen a 1967 car with an AVS from th factory. Look
at the parts book and shop manual, no AVS in there either.

The air cleaner base would have the large hole for AVS instead of small hole for AFB. But you can get the base or the entire air cleaner form the car that donated the AVS. Choke thermostat is different also. Fuel line the same.

Last edited by NANKET; 07/22/18 02:59 PM. Reason: Intake
Re: can a '67 440 Chrysler "300" have an AVS? [Re: NANKET] #2525221
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Originally Posted By NANKET
Originally Posted By BSB67
All 67s 440s used large bolt pattern, 350 used a Holley, 375 used large bolt pattern AFB.


Correct! All 440 engine 67-69 model years used the 2780178 intake manifold. Wide bolt pattern. We are talking M code 440 Cudas to grandmas town and county station wagon, to Mr. Drysdales Imperial convertible. Same intake manifold guys.

1966 and older RB intakes were narrow pattern, all 1967 and older 383's were narrow pattern.

So Morty the 1967 440 is the only AFB car that can take an AVS on the same intake.

Yes it can have an AVS but Chrysler didn't put it there. The 67 300 440 LP 350 horse engine came with a Holley and not very reliable. No surprise it was replaced with an AVS which is more common and with the air door adjustment its very easy to get them to run good.

I've never seen a 1967 car with an AVS from th factory. Look
at the parts book and shop manual, no AVS in there either.

The air cleaner base would have the large hole for AVS instead of small hole for AFB. But you can get the base or the entire air cleaner form the car that donated the AVS. Choke thermostat is different also. Fuel line the same.


Cool - learned something today up

Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525252
07/22/18 10:44 AM
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Quote:

No no no.

That's a 71 440HP carb

GG says so



.....Yes,yes,yes, laugh , and it was commonly used as a one size fits all replacement, most I see are dated post 71 production, dated 1972,3,4, etc.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: ScottSmith_Harms] #2525268
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Originally Posted By ScottSmith_Harms
Quote:

No no no.

That's a 71 440HP carb

GG says so



.....Yes,yes,yes, laugh , and it was commonly used as a one size fits all replacement, most I see are dated post 71 production, dated 1972,3,4, etc.


yep - it's a parts carb

Re: can a '67 440 Chrysler "300" have an AVS? [Re: Morty426] #2525288
07/22/18 12:22 PM
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Quote:
yep - it's a parts carb


And thank God there are so many out there, the pile I have hoarded up have saved many a rare list # carbs sorely needing parts.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: ScottSmith_Harms] #2525845
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the intake # is 2606178 & the date is 1-25-67. the AVS # is 4966 S CM23 on the drivers side inner fender bolt on tag


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525855
07/23/18 01:55 PM
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Scott nailed it. up


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525862
07/23/18 02:19 PM
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Chevy used an AVS in 1966 on their 327 275 HP engines, number 4028SA


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: I_bleed_MOPAR] #2525863
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Didn't he though! The AC compressor was covering the pad I wanted to get a letter off of, but the eng sure does look OE/untouched.


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: RapidRobert] #2525893
07/23/18 03:33 PM
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There's a zillion 4966S carbs floating around. One thing, they use a different diameter accelerator pump so one has to be careful to get the right kit.

R.

Re: can a '67 440 Chrysler "300" have an AVS? [Re: dogdays] #2525918
07/23/18 04:18 PM
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Dog after seeing him today I dont think it will change hands but I will keep the AP difference in mind cuz I did get jammed up over that once on a prior build (had to end up buying 2 kits).


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Re: can a '67 440 Chrysler "300" have an AVS? [Re: GODSCOUNTRY340] #2526055
07/23/18 08:42 PM
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Originally Posted By GODSCOUNTRY340
Chevy used an AVS in 1966 on their 327 275 HP engines, number 4028SA


Had my hands on one of those many years ago. A friend of mine had a '57 Chevy (283 two barrel). I found him the '66 intake and carb for $10. I rebuilt the carb for him. By the time he was done he had a four barrel on his car for about $30. He still couldn't beat my '66 Barracuda...

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