Carb knowledge requested?...

03cts sport · Uber Guru

RE: Carb knowledge requested?...

4SPEED427 · A Poncho Legend!

03cts sport wrote:

Intersting how in the parts book it reads "Carter-Serviced by your Carter distributor", "Holley-Serviced by your Holley distributor", and "Rochester-Serviced by General Motors". What's with that?...

Yeah, I'm not a doubter but I'm still amazed at the wording of that and the fact that they say Carter made Rochester carbs. I can't figure out why Rochester would let them put "Rochester" on the carb if Carter made it.

The parts book has Holley parts listed in charts, but no charts for Carter.

4SPEED427 · A Poncho Legend!

03cts sport wrote:

This link refers to the Carter 4028S (as mentioned in the parts book) as being for trucks?
http://www.chevymania.com/partsid/carb.cfm?make=Carter

I guess that's possible because a pickup could have a 327 powerglide combo in 66 I think?

rabbit64cs · Canadian Poncho Superstar!

4028S Carter AVS carburetor 1966 small block Chevy 327

really?? I have one of them I pulled off a wreck?? years back ? Now I have to pull it down and have a closer look.

very interesting...

-- Edited by rabbit64cs on Sunday 3rd of January 2010 11:26:40 PM

03cts sport · Uber Guru

Carl Stevenson wrote:

03cts sport wrote:

This link refers to the Carter 4028S (as mentioned in the parts book) as being for trucks?
http://www.chevymania.com/partsid/carb.cfm?make=Carter

I guess that's possible because a pickup could have a 327 powerglide combo in 66 I think?

Understood, but just wondering if there could have been a reason to put Carters specifically in the trucks and not the cars?

4SPEED427 · A Poncho Legend!

I'm pretty sure the cars got them in the US. Not convinced yet about Canada.

I'm off to the parts books for a bit. I have US and Canadian parts books to check.

03cts sport · Uber Guru

OK, now I'm looking at the "AMA Specifications-Passenger Car" documentation that I recieved from GM along with my build sheet. On page 9 "Engine- Exhaust Emission Control" it shows Rochester for the 327 and Holley for the 396. Then on the following page of "Carburetor Supplementary Info" it shows all three Rochester, Holley and Carters for the 327 (and Rochester and Holley for the 396.)

Would the manifold, which I know is original, provide any guidance?...

ak 67sd · Poncho Master!

If you end up with a quad, here is the guy you want to rebuild for you...this guy has a very good rep!

http://www.smicarburetor.com/

ak

4SPEED427 · A Poncho Legend!

Well, the Canadian truck parts book says a 4 barrel in 66 or 67 was only on a 327 and was only a 4 jet.....

It sure must have been fun looking up carb kits in those days!

4SPEED427 · A Poncho Legend!

03cts sport wrote:

OK, now I'm looking at the "AMA Specifications-Passenger Car" documentation that I recieved from GM along with my build sheet. On page 9 "Engine- Exhaust Emission Control" it shows Rochester for the 327 and Holley for the 396. Then on the following page of "Carburetor Supplementary Info" it shows all three Rochester, Holley and Carters for the 327 (and Rochester and Holley for the 396.)

Would the manifold, which I know is original, provide any guidance?...

The Carter AVS and Holley use the same intake.

Qjet is on its own.

Yes, that will make it a "for sure" because I think we are safe in saying the Canadian cars never had a Holley in 66 on 275 horse, or are we.....................

-- Edited by Carl Stevenson on Sunday 3rd of January 2010 11:52:23 PM

Beaumont4008 · Uber Guru

Do you know the part number for your intake ? Is it a quadrajet style or just 4 holes the same size ?

Islander · Addicted!

Ahhh now these two posts are together...I'm interested in the intake part number and configuration too......BTW thanks for all the part number info Carl....I knew I should have bid on that parts book in the CP Auction a while back.....

It seems like the Rochesters were evolving into what is now commonly know as a Quadrajet.....before the name came into common use.

Kevin

4SPEED427 · A Poncho Legend!

Islander wrote:

Ahhh now these two posts are together...I'm interested in the intake part number and configuration too......BTW thanks for all the part number info Carl....I knew I should have bid on that parts book in the CP Auction a while back.....

Kevin

Parts books just become another addiction and like cars and parts, you never have enough/never seem to have the one you want/need!

Ask me how I know!

03cts sport · Uber Guru

ak 67sd wrote:

If you end up with a quad, here is the guy you want to rebuild for you...this guy has a very good rep!

http://www.smicarburetor.com/

ak

Thx, we'll keep him in mind!

Beaumont4008 · Uber Guru

This seems to be the most confusing years for carbs yet for the same engine. 327 275 hp engine could be a Carter AVS our a Holley model 4160 on the same manifold or a Rochester made or Carter made Quadrajet or maybe even a Rochester 4GC. Its got my head spinning.

03cts sport · Uber Guru

cheetah 427 wrote:

that 66 275 hp sd rag from conroy i was looking at had a rochester with the gas line coming into the carb from the passenger side, it looked like something you would see on a pontiac but it was oem, it wasnt a quadrajet for sure.

It looks like the Holley 4150 came in either a "side inlet" ore an "end inlet". (However, the book says the "side inlet" was only on the Acadian 350 hp 327 and the "end inlet" on the Pontiac 425 hp 427.)

4SPEED427 · A Poncho Legend!

It sure sounds like a Carter if it wasn't a Q jet.

03cts sport · Uber Guru

Beaumont4008 wrote:

Do you know the part number for your intake ? Is it a quadrajet style or just 4 holes the same size ?

I'm not usre of the part number of the intake (and it is currently parked offsite for the winter). According to the manual:

3931575 1966/All First jobs with 327 - with Roch Carb /sup 3888887 - 3912102
3888886 1966/All After jobs with 327 - with Carter Carb
3888885 1966/All RHD with 327

Does this mean... if I have a 3931575 it should be a Roch 4MV...if I have a 388886 it should be a Carter AVS...and if I have a 3888885 I'm steering from the wrong seat of the car? (All I can think of is Right Hand Drive? Also I'm not sure what "sup 3888887 - 3912102" refers to?)

Also, as my car is a June '66 build, does this mean that it is a "After job" which likely means a Carter?...

PS Thanks for all of the input guys! Very much appreciated...

PPS Is there an easy way to find the part number on the manifold?

-- Edited by 03cts sport on Monday 4th of January 2010 12:49:50 AM

03cts sport · Uber Guru

Carl Stevenson wrote:

It sure sounds like a Carter if it wasn't a Q jet.

Possibly one of those Cartchester Carterjets. (I'm going to bed. Thanks again.)

Steve C · Guru

If you search "acadian beaumont" on ebay someone has a Canadian Pontiac / Beaumont carb updates manual. It would probably shed some light on this topic if someone were interested enough to buy it?

Beaumont4008 · Uber Guru

03cts sport wrote:

Beaumont4008 wrote:

Do you know the part number for your intake ? Is it a quadrajet style or just 4 holes the same size ?

I'm not usre of the part number of the intake (and it is currently parked offsite for the winter). According to the manual:

3931575   1966/All First jobs with 327 - with Roch Carb /sup 3888887 - 3912102
3888886 1966/All After jobs with 327 - with Carter Carb
3888885 1966/All RHD with 327

Does this mean... if I have a 3931575 it should be a Roch 4MV...if I have a 388886 it should be a Carter AVS...and if I have a 3888885 I'm steering from the wrong seat of the car? (All I can think of is Right Hand Drive?  Also I'm not sure what "sup 3888887 - 3912102" refers to?)

Also, as my car is a June '66 build, does this mean that it is a "After job" which likely means a Carter?...

I think untill you look at the one you have we are all guessing. Those intake numbers do not show up in the chevy by the numbers book. Numbers are totaly different in my book. But this is a USA based book. I know sometimes the casting number on the part is not the same as GM's part number.

03cts sport · Uber Guru

Beaumont4008 wrote:

03cts sport wrote:

Beaumont4008 wrote:

Do you know the part number for your intake ? Is it a quadrajet style or just 4 holes the same size ?

I'm not usre of the part number of the intake (and it is currently parked offsite for the winter). According to the manual:

3931575   1966/All First jobs with 327 - with Roch Carb /sup 3888887 - 3912102
3888886 1966/All After jobs with 327 - with Carter Carb
3888885 1966/All RHD with 327

Does this mean... if I have a 3931575 it should be a Roch 4MV...if I have a 388886 it should be a Carter AVS...and if I have a 3888885 I'm steering from the wrong seat of the car? (All I can think of is Right Hand Drive?  Also I'm not sure what "sup 3888887 - 3912102" refers to?)

Also, as my car is a June '66 build, does this mean that it is a "After job" which likely means a Carter?...

I think untill you look at the one you have we are all guessing. Those intake numbers do not show up in the chevy by the numbers book. Numbers are totaly different in my book. But this is a USA based book. I know sometimes the casting number on the part is not the same as GM's part number.

Agreed. Is there an easy way to get the number off the manifold?...

73SC · A Poncho Legend!

Coming late to this party, my 73 had a Quadrajet by Carter. Looked the same in every respect as a Rochester. It needed a rebuild so I changed to a Edelbrock and sold the Carter Quadrajet to a guy with a 73 Corvette who needed a dated coded correct Carter Quadrajet for his concours L48 resto. This carb was a spreadbore, like I said if you never read the side of it you would think Rochester.

-- Edited by 73SC on Monday 4th of January 2010 01:01:13 AM

4SPEED427 · A Poncho Legend!

03cts sport wrote:

Beaumont4008 wrote:

03cts sport wrote:

Beaumont4008 wrote:

Do you know the part number for your intake ? Is it a quadrajet style or just 4 holes the same size ?

I'm not usre of the part number of the intake (and it is currently parked offsite for the winter). According to the manual:

3931575 1966/All First jobs with 327 - with Roch Carb /sup 3888887 - 3912102
3888886 1966/All After jobs with 327 - with Carter Carb
3888885 1966/All RHD with 327

Does this mean... if I have a 3931575 it should be a Roch 4MV...if I have a 388886 it should be a Carter AVS...and if I have a 3888885 I'm steering from the wrong seat of the car? (All I can think of is Right Hand Drive? Also I'm not sure what "sup 3888887 - 3912102" refers to?)

Also, as my car is a June '66 build, does this mean that it is a "After job" which likely means a Carter?...

I think untill you look at the one you have we are all guessing. Those intake numbers do not show up in the chevy by the numbers book. Numbers are totaly different in my book. But this is a USA based book. I know sometimes the casting number on the part is not the same as GM's part number.

Agreed. Is there an easy way to get the number off the manifold?...

Well, after your beauty rest (come spring, I guess) if you can get the casting number of there I bet we will solve this mystery pretty quick.

And please don't do like so many guys who I've tried to help identify a Chevy intake. They come back with the number 18436572!!!! (The engine firing order for those who don't know!)

Actually, likely underneath the coil you will have the date code. In your case, if it's a June car, it will likely be something like E 20 6 or E 20 66 for May 20 1966 for example.

03cts sport · Uber Guru

Carl Stevenson wrote:
Well, after your beauty rest (come spring, I guess) if you can get the casting number of there I bet we will solve this mystery pretty quick.

And please don't do like so many guys who I've tried to help identify a Chevy intake. They come back with the number 18436572!!!! (The engine firing order for those who don't know!)

Actually, likely underneath the coil you will have the date code. In your case, if it's a June car, it will likely be something like E 20 6 or E 20 66 for May 20 1966 for example.

Haaa, it'll take longer than spring to sort out what I've got going!
Re the firing order, thanks for saving me the embarassment! So is it simply a date code or am I looking for either 3931575 or 3888886 marked somewhere visable?
thx