(Ya know, for us pee-ons that can't get a factory made setup...!)
Thanks!!
Aftermarket(Herb's) 6-BARREL...any opinions?
- Thread starter beanhead
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(Ya know, for us pee-ons that can't get a factory made setup...!)
Thanks!!
Bill Monk
Well-Known Member
You mean the full setup? Herb is good people and it will likely be as good as it gets. The carbs are Holley and the intake is edlebrock. Just curious, are you putting it on a factory 6 bbl car or do you just want the 6 pak? For my 2 cents, unless it was a factory 6 bbl car, I wouldn't do it. They are expensive and far more difficult to tune than a 4 barrel. Then if you have a 2 speed wiper motor, you have to install a 3 speed to clear the air cleaner......and I run a 6 pak but it was on the car when I got it.
Like I said, just my 2 cents
Like I said, just my 2 cents
Thanks Bill, I didn't think about the wiper motor clearance but that makes perfect sense..yeah my car was absolutely not a factory 6bbl! The tuning challenge actually appeals to me personally, I was more wondering how the Herb's (or didn't Mancini used to sell a complete setup?) stacks up against the factory stuff. Probably a little better if anything..
Bill Monk
Well-Known Member
the carbs are for all intents and purposes, the same as the later originals, the intake is similar to the same. The air cleaner is generic (the factory had a few different ones depending on year and application) Anyhow if it's what you want go for it but yeah, that much cash will go a long way toward other stuff.
Bill Monk
Well-Known Member
FYI, If you do go for it you will also need the 3 speed wiper switch and the motor crank arm is different too.
Oh heck yes!
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Gentlemen,
As the owner of an original RS23V0A****** GTX, tuning a six barrel car is NOT difficult as the end carbs respond to demand. I also use an original Prestolite dual point distributor (recurved). As far as the carbs go, what is presently available, Holley makes repros of the origionals however, origional carbs can be found on the internet but can be very expensive and are sometimes mofified by self-proclaimed "experts" which are why they are for sale because they don't work correctly.
For my application, I've rejeted the end carbs using the after market removable jet plates in lieu of the standard drilled plates. Plus the jets are staggered depending on the spark plug color. Today's ethanol blended fuels make smooth trouble free operation difficult even using Holley's blue gaskets and pump diaphragm material.
Would it be worth while to convert to a 6 barrel.....it all depends on $$$$, but the feeling of the carbs opening and the sound of the engine and the look of amazement by your opponent or observers as you shift into warp 9, makes it ABSOLUTELY worthwhile.....in my opinion. BTW my GTX has the A34 super track pack with Dana 60 and 4.10 gears....which helps.
Bob Renton
As the owner of an original RS23V0A****** GTX, tuning a six barrel car is NOT difficult as the end carbs respond to demand. I also use an original Prestolite dual point distributor (recurved). As far as the carbs go, what is presently available, Holley makes repros of the origionals however, origional carbs can be found on the internet but can be very expensive and are sometimes mofified by self-proclaimed "experts" which are why they are for sale because they don't work correctly.
For my application, I've rejeted the end carbs using the after market removable jet plates in lieu of the standard drilled plates. Plus the jets are staggered depending on the spark plug color. Today's ethanol blended fuels make smooth trouble free operation difficult even using Holley's blue gaskets and pump diaphragm material.
Would it be worth while to convert to a 6 barrel.....it all depends on $$$$, but the feeling of the carbs opening and the sound of the engine and the look of amazement by your opponent or observers as you shift into warp 9, makes it ABSOLUTELY worthwhile.....in my opinion. BTW my GTX has the A34 super track pack with Dana 60 and 4.10 gears....which helps.
Bob Renton
Bill Monk
Well-Known Member
I agree to a point Bob, the end carbs do respond to demand but to properly tune a six pack, the outboards do contribute fuel at ldle and tuning the rear carb is near impossible on the car unless you have a pro max base plate (which I do have).
Regardless, my point to the OP was that compared to a good 4 bbl, the initial install and tuning of a 6 pak is a pain in the butt, not to mention the cost.
That being said my friend, I'll gladly give you the curb appeal and you gotta love that sound when a properly running 6 bbl kicks in!
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YES....The Promax base plate on the back carb is a wonderful thing....but once the proper idle mixture is set I usually do not have to readjust very often. After one removes the sealing plugs on the ftont carb and adjust it as well, the engine idles quite well as expected. I use a Crane equivalent to the Mopar 292° 0.509" lift cam with Crane roller rocker arms @ 1.6:1 Ratio, idling @ ~ 1200 RPM is sort of lumpy.....but idling isn't everything.....
The car is not a weekend warrior.....just a toy.....
Bob Renton
The car is not a weekend warrior.....just a toy.....
Bob Renton
If you get an aftermarket fiberglass base plate it can be notched for clearance easily. Ofcourse I wouldn't ever do that to a real one.
BSB67
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If the price does not scare you, than go for it.
I've run a lot of carbs and intakes over the years. Generally, my first choice is the 6 pack, and is my favorite.
Everybody's different. Apparently some think they are hard to set up and tune. But a lot of people have no trouble at all.
I've run a lot of carbs and intakes over the years. Generally, my first choice is the 6 pack, and is my favorite.
Everybody's different. Apparently some think they are hard to set up and tune. But a lot of people have no trouble at all.
70sixpkrt
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I would also try Indy Cylinder heads for the price.
66Satellite47
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I worked with several 6 BBL carb setups. My 1st was '69 OEM alum intake, '69 end carbs, modified 500 center carb, manual linkage. I drilled a vacuum port into the 500, put the factory 6 BBL throttle shaft in to convert to vacuum end carbs. Made the mistake of "drilling" end carb meter plates to Mopar specs. Car had severe missing issues. Switched to stock plates plates, missing solved. Main change was pull end carb idle screw plugs, richen idle 1/4 maybe 1/2 turn, great results, play with secondary springs. The set of '70 carbs seemed to work better, the end carbs needed the idle mixture richened also. Center carb jets 2 numbers larger, accelerator pump 2 numbers larger. My '71 carbs were never quite as "crisp" as the '70's. Not sure why. BTW the 500 center carb didn't seem to add much power for me. 6 Paks are fun, 4 BBl's easier to work on.
Should have said the '70 & '71 carbs were run on the '69 OEM alum manifold. Never used any of the cast iron versions. These all were drag race applications w/ 585 ish 310 advertised cams. Carb improvements directly relate to street use IMHO. The end carb idle mixture change was evident driving around the pits. Slight change in end carb idle position screw(under base plate) helps with the bigger cam.
Should have said the '70 & '71 carbs were run on the '69 OEM alum manifold. Never used any of the cast iron versions. These all were drag race applications w/ 585 ish 310 advertised cams. Carb improvements directly relate to street use IMHO. The end carb idle mixture change was evident driving around the pits. Slight change in end carb idle position screw(under base plate) helps with the bigger cam.
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Mopar Hunter
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I concur.....most (all?) of the people that tinker with their csrbs and have pronlems with carbs, have no clue as to how a carb works.....usually the difficulties are related to listening to the next door neighbor's brother-in-law's cousin's best buddy's fundamental lack of real knowledge of how things work......anyway just my opinion of course.
Bob Renton
chucklbunny
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Hi,
I just installed a Herb's 6-pack kit this spring on my 72 440 RR and it went great !! If you buy it make dang sure to do a inventory of the parts you get to make sure you get them all - Herb's did a great job but they missed a few parts and after emailing them I had them without issue. Do your homework on installing the six pack (I got all the needed info here) I did the whole install myself and so far the car runs excellent. If you have any questions just ask.
I am 100% satisfied with the kit and Herb's !!!!!!!
(pics attached)
I just installed a Herb's 6-pack kit this spring on my 72 440 RR and it went great !! If you buy it make dang sure to do a inventory of the parts you get to make sure you get them all - Herb's did a great job but they missed a few parts and after emailing them I had them without issue. Do your homework on installing the six pack (I got all the needed info here) I did the whole install myself and so far the car runs excellent. If you have any questions just ask.
I am 100% satisfied with the kit and Herb's !!!!!!!
(pics attached)
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Very nice, nothing runs like a six barrel (Plymouth) the Dodge six pack is almost as good .....perhaps you should have painted it to match the engine b4 installing??? A little critism (or sarcasm...if you prefer)...change the driver's side valve cover and reroute the PCV hose around behind the rear carb to the inlet on the center carb...... Just my opinion of course.
BTW....Tony's Parts is another good source for Mopar stuff.
Bob Renton
BTW....Tony's Parts is another good source for Mopar stuff.
Bob Renton
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THIS!!!!
I had a stock, 52,000 mile 71 Charger R/T back in 78. Now granted, it was bone stock, 3.23 open 8 3/4 727 auto, A/C in a car that weighs a few hundred pounds more than my 70 V-code Roadrunner...
BUT
The difference between the feeling of flooring that and the 1971 steel crank, heavy rods 440 6bbl in my Roadrunner is night and day. Contributing factors are
1&7/8" TTi headers, 292°/.509 purple stripe cam, CompCams lifters, springs (it really needed springs), 10° locks and retainers, had 3.54 R&P w/the 833 18 spline 4 speed, but now 4.10s with the a855 Passon 5 speed.
So I know it's more than just the 6bbl that brings the thrill, but there is nothing other than a turbocharger spooled up that I can compare to the rush of the outboard carbs opening!
Get the 6bbl ! Learn how to set it up and tune it.
I don't know how many people say "WOW!" when you pop the hood on a 4bbl, but I can promise you it's a LOT of people who say that when I pop my hood!
By the way, I stripped the orange paint off that beautiful aluminum intake and clear coated it. Too pretty to cover it up with paint!
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