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Re: Carb spacing on a 6bbl [Re: ruderunner] #3214048
02/16/24 10:19 PM
02/16/24 10:19 PM
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Cincinnati,Ohio
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jcastle1 Offline
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is that a 383 intake ?

Re: Carb spacing on a 6bbl [Re: jcastle1] #3214093
02/17/24 10:16 AM
02/17/24 10:16 AM
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ruderunner Offline OP
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Mine is.

Everyone saying they don't or can't fit, explain exactly why please?

I mean I did post pictures of my setup, and acknowledged a couple remaining issues.

What do you think I'm missing?


Angry white pureblood male
Re: Carb spacing on a 6bbl [Re: ruderunner] #3214309
02/18/24 10:30 AM
02/18/24 10:30 AM
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More pictures

20240217_115143.jpg

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Re: Carb spacing on a 6bbl [Re: ruderunner] #3214310
02/18/24 10:34 AM
02/18/24 10:34 AM
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ruderunner Offline OP
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Again

20240217_115138.jpg

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Re: Carb spacing on a 6bbl [Re: ruderunner] #3214311
02/18/24 10:38 AM
02/18/24 10:38 AM
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20240217_115232.jpg20240217_115305.jpg

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Re: Carb spacing on a 6bbl [Re: ruderunner] #3214314
02/18/24 11:08 AM
02/18/24 11:08 AM
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Motor City
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Always good info. Man, I love sixpacks. I have a 440 sixpack, a 383 Sixpack (yes, a non-factory Edelbrock low deck manifold) and a 340 sixpack.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: Carb spacing on a 6bbl [Re: 6PKRTSE] #3214363
02/18/24 02:54 PM
02/18/24 02:54 PM
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ruderunner Offline OP
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Fwiw, I've got about 1k into this mess, so I'm money ahead compared to buying "correct " parts. That includes a couple extra carbs and rebuild kits for them.

I really really wanted to use the 350 I have for the center, mainly because the main body is just a little smaller. But, turns out it's worth what I paid for it, zero. Pulled it off a junkyard truck that had been sitting without a hood for a long time. Just rusted solid.

So, 3 500s is what I'm going with. Bad idea? Absolutely. Way too much for my current engine.

But, I'm enjoying the challenge anyway.


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Re: Carb spacing on a 6bbl [Re: ruderunner] #3214388
02/18/24 04:37 PM
02/18/24 04:37 PM
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Originally Posted by ruderunner
I'll cut airhorn gaskets. Base gaskets should be ok other than the mounting holes and or throttle holes. Other gaskets should be standard stuff.


No I meant are the gaskets installed between the bowl and metering block and metering block and carb body, they didn't look like it in the picture and that will add a small amount to the carb overall width.

and another question , what air cleaner are you planning on , that is going to need to be modified too .

What did you have to whittle off the carbs there?

I'm not familiar with what those carbs are off originally, Ford truck application?

They should work, what size engine are you running this on?

Last edited by JohnRR; 02/18/24 04:54 PM.

running up my post count some more .
Re: Carb spacing on a 6bbl [Re: ruderunner] #3214491
02/18/24 11:32 PM
02/18/24 11:32 PM
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jcastle1 Offline
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I think I sold you that intake

Re: Carb spacing on a 6bbl [Re: JohnRR] #3214741
02/19/24 08:19 PM
02/19/24 08:19 PM
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Originally Posted by JohnRR
[quote=ruderunner]I'll cut airhorn gaskets. Base gaskets should be ok other than the mounting holes and or throttle holes. Other gaskets should be standard stuff.


No I meant are the gaskets installed between the bowl and metering block and metering block and carb body, they didn't look like it in the picture and that will add a small amount to the carb overall width.

_____ No gaskets yet but there's a little clearance between the center and rear carbs. There's also a little more material I can take off if needed. I may redo the center carb anyway since I took off a boss or two for the choke linkage. Kinda figured one carb would be a throwaway.

and another question , what air cleaner are you planning on , that is going to need to be modified too .

_____ I plan on the K&N Mopar style filter with a repop 6bbl lid. I'll make the needed studs and baseplate once this is in the car. I can line everything up with the 6bbl scoop.

What did you have to whittle off the carbs there?

______ Obviously the rear half of the airhorns and the associated ribbing. On the rear carb I smoothed out the front of the bowl, milled a little off the bowl gasket surface and the outer edge of the metering block where the bowl seals. Not much gained there due to accelerator pump passages. The bowl and metering block machining got me maybe 3/16". I'll have to modify the lever on the accelerator pump to correct linkage alignment.

I'm not familiar with what those carbs are off originally, Ford truck application?

_____ As far as I know, these are big bore versions of the basic 2300 series 2bbl used by a few manufacturers. Typically OEM were the 350 cfm versions. I don't think the 500s were used factory.

They should work, what size engine are you running ?

_____ Going on a pretty mild 383 for now. Going to have to go down the rabbit hole for tuning as this is really alot more cfm than needed.

JCastle, might be your manifold, bought it off ebay a couple months ago.


Angry white pureblood male
Re: Carb spacing on a 6bbl [Re: ruderunner] #3216001
02/25/24 10:20 AM
02/25/24 10:20 AM
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Spent a little time yesterday looking things over and decided I'm definitely going to machine another center carb. I want to keep the chokstat mounting points in case I end up with one of those or using the manual choke parts I have.

Ideally I want to run a factory style well mounted chokstat, probably get one for an 80s 318 to have electric heating too. And yes, I'll have to modify the rod for it.

Also I want to reshape the center airhorn around the float adjustment for the rear carb.

There's vacuum passages in the bases of the outboards that will need to be plugged, the surfaces of the manifold aren't big enough to seal them off. I'm thinking JB weld or solder, any other ideas?


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Re: Carb spacing on a 6bbl [Re: ruderunner] #3216019
02/25/24 12:01 PM
02/25/24 12:01 PM
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If you oblong the holes on the carb base to make them fit then your butterflies will not fit or open properly. Your better off finding side hung bowls and make them fit.

Re: Carb spacing on a 6bbl [Re: R/T1968R/T] #3216066
02/25/24 02:11 PM
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Already covered, and I'm going to open up the plenum bores just a bit for clearance. As I get things more dialed in, I might be able to minimize the grinding.

Also, I don't want side hung bowls, kinda defeats the purpose of this exercise.


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Re: Carb spacing on a 6bbl [Re: ruderunner] #3216715
02/27/24 09:35 PM
02/27/24 09:35 PM
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Is ALL of this work just to get adjustable jetting on all 3 carbs? I heard they make drill bits for the general, er, I mean, Mopar repair crowd.

Re: Carb spacing on a 6bbl [Re: Kudakidd] #3216811
02/28/24 01:30 PM
02/28/24 01:30 PM
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That and saving a couple thousand bucks.


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Re: Carb spacing on a 6bbl [Re: ruderunner] #3226826
04/13/24 07:58 AM
04/13/24 07:58 AM
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Just an update, work has been busy and I haven't had time to use the mills. I did pull the intake off the car to get ready for the swap.

Also made up fuel lines but discovered buggered threads in one of the bowls. Grrr. Going to have to scrounge up another bowl.

Got parts ordered up to make linkage. Got a KN air filter and going to order a lid this weekend.

Unrelated but other projects are installing a heater, replacing the fuse block, relocating gauges and putting a factory radio back in.

And momma is buying me seat covers and carpet for my birthday.


Angry white pureblood male
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