Eric and 72RoadrunnerGTX are both correct, the carbs you are looking at are not the correct carbs for a 71.
I am posting links to a correct late 70 early 71 set of carbs I had proffesionally restored and now I am selling. As you can see by the pics they are the same numbers as Eric posted and you can see the original hose fitting going to the nipple.
http://i70.photobucket.com/albums/i115/ ... /carb1.jpg
http://i70.photobucket.com/albums/i115/ ... /carb2.jpg
http://i70.photobucket.com/albums/i115/ ... /carb3.jpg
http://i70.photobucket.com/albums/i115/ ... C-016F.jpg
http://i70.photobucket.com/albums/i115/ ... -003F1.jpg
http://i70.photobucket.com/albums/i115/ ... -007F2.jpg
http://i70.photobucket.com/albums/i115/ ... -009F2.jpg
http://i70.photobucket.com/albums/i115/ ... C-022F.jpg
http://i70.photobucket.com/albums/i115/ ... C-020F.jpg
71 440 Six Barrel Carb Casting Numbers
Moderator: Site Administrators
-
RRUNR3
-
72RoadRunnerGTX
- GTX (RS)
- Posts: 594
- Joined: Wed Dec 27, 2006 6:44 pm
- My Cars: 1972 Road Runner/GTX
1972 Satellite Sebring
1972 Satellite Sebring(big block parts car) - Location: Seattle, Washington
Hello Nick,
Just one little point of contention, technically, center carb List # 4670 would be correct only for model year 1971, would not be on any 70’ Mopar. The main physical difference between the 71’ center carb and older carbs was the enclosed bowl vent system described above. This bowl vent design first appeared on Holley O.E.M. 2300 and 4160(4bbl) series carburetors in 1970 as part of the E.C.S. (Evaporation Control System) on cars built for sale in California. The rest of the country came with what was called C.A.S. (Cleaner Air System) speced carbs with the older open bowl vent design. For a few years beginning about 1969, when California had more stringent emissions standards than the rest of the country, most US auto manufactures would build two variants of almost their entire model line. The various emission systems and related equipment that would show up on a “California car†would be incorporated into the following years “49 state†version. Sometime in the mid seventies the Feds adopted California’s standards. The 70’ shop manual shows 4 separate list numbers for the center carb on a 440 set up. An Auto trans with and without E.C.S. and a Man. trans with and without E.C.S. The correct center carb for a 70’ having the enclosed bowl vent would be List# 4144(auto trans)-List# 4374(manual trans) and would only be correct for a vehicle destined for sale in California that year. Physically, List# 4144/4374 would look like the 71’ #4670 however would have been tuned/jetted to 70’ specs.
The picture below shows a six-pack set-up I pieced together in about 75’ for my old 70’ Road Runner. I was working at a Chrysler Plymouth dealer at time and was able to order the carbs, manifold, and a few brackets all new. I seem to recall that they were 71’ carbs, the 70’ numbers had already gone NS1. I had to fabricate the fuel lines as they were not serviced at all at the time. Yes, I know that’s the wrong engine paint. “Chevy orange†was about all the local auto parts stores would stock back then. I don’t remember it looking funny at time. Check out the cruise control.
Just one little point of contention, technically, center carb List # 4670 would be correct only for model year 1971, would not be on any 70’ Mopar. The main physical difference between the 71’ center carb and older carbs was the enclosed bowl vent system described above. This bowl vent design first appeared on Holley O.E.M. 2300 and 4160(4bbl) series carburetors in 1970 as part of the E.C.S. (Evaporation Control System) on cars built for sale in California. The rest of the country came with what was called C.A.S. (Cleaner Air System) speced carbs with the older open bowl vent design. For a few years beginning about 1969, when California had more stringent emissions standards than the rest of the country, most US auto manufactures would build two variants of almost their entire model line. The various emission systems and related equipment that would show up on a “California car†would be incorporated into the following years “49 state†version. Sometime in the mid seventies the Feds adopted California’s standards. The 70’ shop manual shows 4 separate list numbers for the center carb on a 440 set up. An Auto trans with and without E.C.S. and a Man. trans with and without E.C.S. The correct center carb for a 70’ having the enclosed bowl vent would be List# 4144(auto trans)-List# 4374(manual trans) and would only be correct for a vehicle destined for sale in California that year. Physically, List# 4144/4374 would look like the 71’ #4670 however would have been tuned/jetted to 70’ specs.
The picture below shows a six-pack set-up I pieced together in about 75’ for my old 70’ Road Runner. I was working at a Chrysler Plymouth dealer at time and was able to order the carbs, manifold, and a few brackets all new. I seem to recall that they were 71’ carbs, the 70’ numbers had already gone NS1. I had to fabricate the fuel lines as they were not serviced at all at the time. Yes, I know that’s the wrong engine paint. “Chevy orange†was about all the local auto parts stores would stock back then. I don’t remember it looking funny at time. Check out the cruise control.
Last edited by 72RoadRunnerGTX on Tue Aug 26, 2008 11:35 pm, edited 2 times in total.
[quote="72RoadRunnerGTX"]Hello Nick,
Just one little point of contention, technically, center carb List # 4670 would be correct only for model year 1971, would not be on any 70’ Mopar. The main physical difference between the 71’ center carb and older carbs was the enclosed bowl vent system described above. This bowl vent design first appeared on Holley O.E.M. 2300 and 4160(4bbl) series carburetors in 1970 as part of the E.C.S. (Evaporation Control System) on cars built for sale in California. The rest of the country came with what was called C.A.S. (Cleaner Air System) speced carbs with the older open bowl vent design. The 70’ shop manual shows 4 separate list numbers for the center carb on a 440 set up. An Auto trans with and without E.C.S. and a Man. trans with and without E.C.S. The correct center carb for a 70’ having the enclosed bowl vent would be List# 4144(auto trans)-List# 4374(manual trans) and would only be correct for a vehicle destined for sale in California that year. Physically, List# 4144/4374 would look like the 71’ #4670 however would have been tuned/jetted to 70’ specs.
The picture below shows a six-pack set-up I pieced together in about 75’ for my old 70’ Road Runner. I was working at a Chrysler Plymouth dealer at time and was able to order the carbs, manifold, and a few brackets all new. I seem to recall that they were 71’ carbs, the 70’ numbers had already gone NS1. I had to fabricate the fuel lines as they were not serviced at all at the time. Yes, I know that’s the wrong engine paint. “Chevy orange†was about all the local auto parts stores would stock back then. I don’t remember it looking funny at time. Check out the cruise control.
quote]
You are correct, my error, I type to fast for the brain to keep up sometimes. I checked my book and there it was in plain site....
Just one little point of contention, technically, center carb List # 4670 would be correct only for model year 1971, would not be on any 70’ Mopar. The main physical difference between the 71’ center carb and older carbs was the enclosed bowl vent system described above. This bowl vent design first appeared on Holley O.E.M. 2300 and 4160(4bbl) series carburetors in 1970 as part of the E.C.S. (Evaporation Control System) on cars built for sale in California. The rest of the country came with what was called C.A.S. (Cleaner Air System) speced carbs with the older open bowl vent design. The 70’ shop manual shows 4 separate list numbers for the center carb on a 440 set up. An Auto trans with and without E.C.S. and a Man. trans with and without E.C.S. The correct center carb for a 70’ having the enclosed bowl vent would be List# 4144(auto trans)-List# 4374(manual trans) and would only be correct for a vehicle destined for sale in California that year. Physically, List# 4144/4374 would look like the 71’ #4670 however would have been tuned/jetted to 70’ specs.
The picture below shows a six-pack set-up I pieced together in about 75’ for my old 70’ Road Runner. I was working at a Chrysler Plymouth dealer at time and was able to order the carbs, manifold, and a few brackets all new. I seem to recall that they were 71’ carbs, the 70’ numbers had already gone NS1. I had to fabricate the fuel lines as they were not serviced at all at the time. Yes, I know that’s the wrong engine paint. “Chevy orange†was about all the local auto parts stores would stock back then. I don’t remember it looking funny at time. Check out the cruise control.
quote]
You are correct, my error, I type to fast for the brain to keep up sometimes. I checked my book and there it was in plain site....
71 GTX 4sp GY9
70 R/T Challenger - 80's look
http://www.nicksclassicparts.com
70 R/T Challenger - 80's look
http://www.nicksclassicparts.com
-
72RoadRunnerGTX
- GTX (RS)
- Posts: 594
- Joined: Wed Dec 27, 2006 6:44 pm
- My Cars: 1972 Road Runner/GTX
1972 Satellite Sebring
1972 Satellite Sebring(big block parts car) - Location: Seattle, Washington
An afterthought here about the “71’ three nipple breather capâ€. The 70-71’ center carb bowl vent discussion above would also mean the three nipple cap would be correct on any California bound six-pack cars in 1970.
Found this picture over on moparts, shows what is claimed to be an untouched 70’ California six-pack Cuda. Note the missing intake bolts and the reversed PCV and bowl vent hoses. Not so sure I would call it “untouchedâ€.
Found this picture over on moparts, shows what is claimed to be an untouched 70’ California six-pack Cuda. Note the missing intake bolts and the reversed PCV and bowl vent hoses. Not so sure I would call it “untouchedâ€.