Slant Six Forum :: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor

I think the closest carb you are looking for is a Holley 4360. It is a spreadbore four barrel carb, but the secondaries are barely bigger than the primaries. It is rated at 450 CFM and was originally intended as an economy carb in the 70s and 80s. The 4360 came out in a number of models tailored to various GM, Ford, and Chrysler products. Unless you are willing to run a manual choke, you want to get one that has an electric choke, which is somewhat hard to find.

Last year I was researching 4360s and wound up buying a bunch of them. Most of them ended up being parts carbs or cores, but I have a few I was intending to rebuild and run. Most people say they can't be tuned but they share jets with the Weber carbs.

I started a thread compiling all the info I could find on the various list numbers. There were differences that make it worth trying to track down the right list number. See here: http://www.slantsix.org/forum/viewtopic ... er#p450860

If you aren't in a hurry, I can take a look at the carbs I have and see if there is one that might work for you. I am slammed with work right now, though, so it might take me a bit to get back to you.

Author:	scootro [ Tue Feb 13, 2018 5:25 pm ]
Post subject:	dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
i believe its a 235 or a 240 motor. it's going in a late 70's dodge truck. i'm having the darnedest luck finding the carb. only thing i've found was a edelbrock 500cfm

Author:	scootro [ Tue Feb 13, 2018 5:27 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
i've emailed tons of folks on ebay and all the popular car part .coms

Author:	hyper_pak [ Tue Feb 13, 2018 5:36 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
You could check ebay, they show up once in a while. Not long ago someone listed restrictors for a Carter AFB which would make a small cfm carb. 500 is not that much larger.

Author:	scootro [ Tue Feb 13, 2018 5:42 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Quote: You could check ebay, they show up once in a while. Not long ago someone listed restrictors for a Carter AFB which would make a small cfm carb. 500 is not that much larger. i've got that 500 already. it's not working right with my recent rebuild. working on the ebay front. no luck so far

Author:	scootro [ Tue Feb 13, 2018 5:43 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
the carb needs be between 300 and 400 cfm

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dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor https://slantsix.org/forum/viewtopic.php?t=61966	Page 1 of 2

Author:	gato [ Tue Feb 13, 2018 6:29 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
235 or 240? is it a slant? or standing up straight?

Author:	scootro [ Tue Feb 13, 2018 6:32 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Quote: 235 or 240? is it a slant? or standing up straight? slant. i thought it was worth a shot in the dark to ask you all

Author:	Reed [ Tue Feb 13, 2018 8:15 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
I think the closest carb you are looking for is a Holley 4360. It is a spreadbore four barrel carb, but the secondaries are barely bigger than the primaries. It is rated at 450 CFM and was originally intended as an economy carb in the 70s and 80s. The 4360 came out in a number of models tailored to various GM, Ford, and Chrysler products. Unless you are willing to run a manual choke, you want to get one that has an electric choke, which is somewhat hard to find. Last year I was researching 4360s and wound up buying a bunch of them. Most of them ended up being parts carbs or cores, but I have a few I was intending to rebuild and run. Most people say they can't be tuned but they share jets with the Weber carbs. I started a thread compiling all the info I could find on the various list numbers. There were differences that make it worth trying to track down the right list number. See here: http://www.slantsix.org/forum/viewtopic ... er#p450860 If you aren't in a hurry, I can take a look at the carbs I have and see if there is one that might work for you. I am slammed with work right now, though, so it might take me a bit to get back to you.

Author:	scootro [ Tue Feb 13, 2018 8:20 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Quote: I think the closest carb you are looking for is a Holley 4360. It is a spreadbore four barrel carb, but the secondaries are barely bigger than the primaries. It is rated at 450 CFM and was originally intended as an economy carb in the 70s and 80s. The 4360 came out in a number of models tailored to various GM, Ford, and Chrysler products. Unless you are willing to run a manual choke, you want to get one that has an electric choke, which is somewhat hard to find. Last year I was researching 4360s and wound up buying a bunch of them. Most of them ended up being parts carbs or cores, but I have a few I was intending to rebuild and run. Most people say they can't be tuned but they share jets with the Weber carbs. I started a thread compiling all the info I could find on the various list numbers. There were differences that make it worth trying to track down the right list number. See here: http://www.slantsix.org/forum/viewtopic ... er#p450860 If you aren't in a hurry, I can take a look at the carbs I have and see if there is one that might work for you. I am slammed with work right now, though, so it might take me a bit to get back to you. thank you I don't want to put you out there too much trouble besides I'm not a real big fan of Holley carburetors I had a ultra rare Carter 400 CFM carburetor but my engine builder lost it during the rebuild on my motor

Author:	Reed [ Tue Feb 13, 2018 9:07 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Well, you can buy another right now if you have four bills: https://www.ebay.com/p/Carter-AFB-9400S ... 7675.l2644 Alternatively, this guy on ebay sells restrictors to turn 600 and 500 CFM Edelbrock performer/Carter AFBs into 400 cfm carbs: https://www.ebay.com/sch/junk-yard/m.ht ... 7675.l2562

Author:	scootro [ Tue Feb 13, 2018 9:11 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Quote: Well, you can buy another right now if you have four bills: https://www.ebay.com/p/Carter-AFB-9400S ... 7675.l2644 Alternatively, this guy on ebay sells restrictors to turn 600 and 500 CFM Edelbrock performer/Carter AFBs into 400 cfm carbs: https://www.ebay.com/sch/junk-yard/m.ht ... 7675.l2562 Damn that's a good find! Thank you so much

Author:	wjajr [ Wed Feb 14, 2018 7:19 am ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
Holley 390 cfm or 8007 list it looks like this pricey new, but probably easy to find a second hand unit. It's what I'm running on my hopped up slant six bored out to about 230 ci. I would select vacuum secondary operation of whichever carb you select as it opens secondaries based on engine's demand not throttle position. Is engine a flat head, and what kind of rpm is this engine turning to require 400 cfm? Here is a carburetor cfm calculator to play around with.

Author:	scootro [ Wed Feb 14, 2018 6:47 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
i got it all figured out! thank you all for the help! here's a link of the pictures of the truck http://www.slantsix.org/forum/viewtopic ... 12&t=61970

Author:	'67 Dart 270 [ Thu Feb 22, 2018 9:07 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
You could always go double 2bbls with an offy manifold.....just saying. I had my Webers synchronized and it sounded just like a thermoquad kicking in when I hit the pedal to the floor..also better fuel distribution with two distribution points vs one. Brian

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Author:	halfafish [ Thu Feb 22, 2018 9:31 pm ]
Post subject:	Re: dodge inline 6 cylinder looking for a 4-barrel 400cfm carburetor
If you are interested, I have a Holley 390 carb that I will not be using. Fair warning, it has no choke function, it's a race carb. I never hooked it up, but it came from a highly reliable source. I decided I was likely to use my car in cooler weather, so the non-choke business is the reason it's for sale. PM me if interested.