Quadrajet vs Edelbrock 1405

[Dart Frog]

Mopar always had a working relationship and a loyalty to Carter carburetors please show me because I would love to learn any performance model roadrunner, GTX cuda, Challenger, Max wedge car etc etc 340 car hemi car... We should be getting the point okay quadra
Jet may have been put stuck under doghouses of vans or out of necessity for lack of carburetor availability because the production lines must keep moving or whatever reasons Show me a performance Mopar package with a quadrajet that wasn't some super rarity because I know of none. I would think this wouldn't be that hard to understand. But by all means put together your nice classic Mopar muscle car stick a quadrajet on it take it to the show or event where people in the know are and see if my position isn't by far the overall consensus.. I have nothing against quadrajet carburetors I think they're awesome they had a working relationship with GM and other manufacturers the same as Carter had with Chrysler corporation.

 

[RustyRatRod]

Mopar always had a working relationship and a loyalty to Carter carburetors please show me because I would love to learn any performance model roadrunner, GTX cuda, Challenger, Max wedge car etc etc 340 car hemi car... We should be getting the point okay quadra
Jet may have been put stuck under doghouses of vans or out of necessity for lack of carburetor availability because the production lines must keep moving or whatever reasons Show me a performance Mopar package with a quadrajet that wasn't some super rarity because I know of none. I would think this wouldn't be that hard to understand. But by all means put together your nice classic Mopar muscle car stick a quadrajet on it take it to the show or event where people in the know are and see if my position isn't by far the overall consensus.. I have nothing against quadrajet carburetors I think they're awesome they had a working relationship with GM and other manufacturers the same as Carter had with Chrysler corporation.

Q Jets were put on literally millions of diplomats and trucks and vans through the 80s. We don't have to show you anything. We LIVED through it working on them when they were NEW. What you think you know and what you know are two completely different things. Carter went defunct in the early 80s leaving Chrysler needing a replacement. So they turned to the Quadrajet. They put millions of them on 318s, 360s in cars, trucks and vans. All you're doing by arguing is showing your ignorance. You need to do some research. Chrysler used the Quadrajet just like Ford and International Harvester used the Thermoquad. I'd bet you didn't know that, either. No harm in not knowing something. But you look kinda stupid comin on here arguing about something that we all know is true.

 

[rumblefish360]

Not to mention by that time when Chrysler corp moved to the Q-Jet, the good performance years were well well in the rear view mirror.

You could say the same for a Holley 4bbl. Not widely used on a MoPar.

 

[Mean416]

I'm gonna go against the grain here and say the Edelbrock carb has issues that can't easily be resolved. They have a very pesky off idle lean condition that causes hesitation and really can't be dialed out without having a very rich idle mixture setting.

And trust me, I'm well aware of the changes you can make with the carb. I've tuned several.

I'm not familiar enough with the quadrajet but from what I understand it's a more sophisticated carburetor with more tuning flexibility. Key word though I'm not that familiar.

 

[RustyRatRod]

I'm gonna go against the grain here and say the Edelbrock carb has issues that can't easily be resolved. They have a very pesky off idle lean condition that causes hesitation and really can't be dialed out without having a very rich idle mixture setting.

And trust me, I'm well aware of the changes you can make with the carb. I've tuned several.

I'm not familiar enough with the quadrajet but from what I understand it's a more sophisticated carburetor with more tuning flexibility. Key word though I'm not that familiar.

I've not known the 1405 for that. It's the performance version. Now the 1406, yes. I've experienced it myself, first hand as it is calibrated much leaner than the 1405 for fuel mileage. But I've never had problems with the 1405 and I've run a few of each.

 

[YY1]

You can google the numbers on q jets and get the application and CFM.

They are comparable to a thermoquad in operation and tuning.

...plus you get that "bwooooooosh" effect when floored.

I agree, the Carter/Edelbrock AFB/AVS is MUCH easier to tune.

 

[CRUZE 418]

You will probably have to get the electric choke modification kit for the 1405, as I don't believe they come with one. I have 2 1405's on my Hemi, I installed a choke kit on the rear carb, which kinda makes it a 1406.

 

[RustyRatRod]

To me the "bwooooooosh" is worth the whole learning curve. lol

 

[agv18]

I plan to get over that learning curve, but the goal is to not let the car sit for too long. I had it sitting for a over a month because of issues I had to fix with wiring and fuel and I just fixed it

 

[agv18]

You will probably have to get the electric choke modification kit for the 1405, as I don't believe they come with one. I have 2 1405's on my Hemi, I installed a choke kit on the rear carb, which kinda makes it a 1406.

I still haven’t mounted it yet, but can I run it without an electric choke? Like will it align with the old choke linkage?

 

[CRUZE 418]

Alignment, no, don't believe so. Can you run it, yes, the 1405 gas a choke blade, it's just in-op, hard wired so to speak wide open. The choke kit will modify it to function. Not hard to do. Here are 3 pictures of mine, not sure that they will help.

 

[agv18]

It does help, thanks!

 

[Bewy]

1405 & 1406 Edel carbs have differences other than the elec choke. 1405, man choke model, has richer jetting. Air bleeds, emulsion holes may also be different.

 

[S'cuder]

quadrajet carburetors... they had a working relationship with GM and other manufacturers the same as Carter had with Chrysler corporation.

Not quite the same. Quadrajets, Dualjets and Monojets were manufactured by Rochester Products, a wholly owned subsidiary of GM.

Chrysler buying Rochester carburetors from GM to put on their cars is the same as buying Saginaw power steering pumps like the one that came on my '69 Super Bee.

GM is still making fuel delivery parts in the same facility where they made Q-jets.

 

[66fs]

A QuadraJet carb is just behind a Thermo-Quad as being one of the best street carbs. As always, the earlier the better. There is more to do to make a QuadraJet good than a TQ, but if that is what you have go for it. The Edelbrock would be easier as it is very similar to OEM carbs up to the TQ era.

 

[HankRearden]

Do you have one bit of mopar pride?if you do you would never stick a quadrajet on it Unless you have to. It's like putting steak sauce on ice cream. jmo

Oh look who has no idea mopar used quadrajets and is more interested in brand loyalty to a defunct company than building a car that performs well.

 

[Darter6]

Chrysler went to the Rochester carb when Carter was having trouble and closed.

Started around 1985. My 88 D350 Ram pickup had a factory QJ. They also had electric chokes.

 

[RustyRatRod]

Not quite the same. Quadrajets, Dualjets and Monojets were manufactured by Rochester Products, a wholly owned subsidiary of GM.

Chrysler buying Rochester carburetors from GM to put on their cars is the same as buying Saginaw power steering pumps like the one that came on my '69 Super Bee.

GM is still making fuel delivery parts in the same facility where they made Q-jets.

View attachment 1716477167

It'a also the same as GM paying Chrysler royalties for years to use the "Suburban" name.

 

[Vaanth]

Following is a listing of Quadrajets used by Chrysler. This list can also be found in my Thermo-Quad Guide. FYI...

---

Rochester Quadrajet Listing​

Carter ceased production of the Thermo-Quad after the 1984 model year. Chrysler switched to the Rochester Quadrajet M4ME and E4ME for 1985-1989.

• M4ME = "Modified" (post 1974), 4 barrel Quadrajet, electric choke, non feedback.
• E4ME = Electronic feedback, 4 barrel Quadrajet, electric choke.

NOTE: The identification number is stamped vertically on the left side near the secondary throttle lever.

Rochester Number	Application​	Chrysler Number​	Details​
17085407​	85-87 318​	4306407​	O2, E4ME​
17085408​	85-86 360 Truck ​	4306408​	AT, Fed​
17085409​	85-86 360 Truck ​	4306409​	AT, Fed, HA​
17085411​	85 318 ​	4306411​	Can, Exp​
17085414​	85-88 360 Truck​	4306414​	HD​
17085415​	85 360 Truck ​	4306415​	HD, Fed, CA, Can​
17085416​	85-88 360 Truck​	4306416​	LD, Fed, CA, Can​
17085417​	85-86 360 Truck ​	4306417​	MT, Fed​
17085425​	86 360 Truck ​	4306425​	Fed​
17085431​	86 360 Truck ​	4306431​	HD, CA, Can​
17085432​	85-88 360 Truck​	4306432​	HD​
17085433​	86-89 318​	4306433​	Fed, CA, Can, O2, E4ME​
17085434​	86 360 Truck​	4306434​	AT, Fed, CA, Can​
17087175​	88 360 Truck​	4306419​	AT, Fed​
17087176​	88 360 Truck​	4306420​	MT, Fed​
17087177​	88 360 Truck​	4306424​	AT, Fed, HA​
17087245​	88 360 Truck​	4306437​	Fed, CA, HD​

Table Abbreviations:

• AT = Automatic Transmission
• MT = Manual Transmission ( No reference means both transmissions )
• CA = California application; generic for CA, Sales code N95
• Fed = Federal application ( No reference means both Federal and California.)
• Can = Canada application. Typically, Canada used Federal carburetors except as noted.
• Exp = Export
• HD = Heavy Duty Cycle
• HA = High Altitude
• O2 = Feedback unit

---

 

[65TerrorCuda]

I'd try the quadrajet just to learn how to work on another carb. Plus it'd look cool sticking out of the hood

 

[Mean416]

It'd be neat for sure but aesthetics was never it's strength.

 

[RustyRatRod]

It'd be neat for sure but aesthetics was never it's strength.

Naw, they are sho nuff cosmetically challenged compared to a Thermoquad.

 

[Mean416]

IMO the only decent looking carbs...

Holley 4bl based carbs
The Carter/Edelbrock look old school cool on a tunnel ram
Weber carbs with stacks are neato

All the other should stay under the hood, and hidden by an air cleaner lol.

 

[middleagecrisis]

Performer intake and a 1405 were practically made for a 318. Hard to get a better combination for a 318 from stock to a mild cam it works equally well.

 

[melcardona]

Apology for saying your reply was a stupid *** one.

But it was because you immediately went for his throat with “Pride” of owning a MoPar & offending the MoPar & the MoPar world with what you didn’t think came on a MoPar.

It’s a correction for you and anyone else that thinks a Q-J wasn’t ever stock on a MoPar.

If you had read my first reply to the thread, you wouldn’t be saying what you did. Now I’m starting to think you may be as stupid as your reply.

Even so, what if decides on a complete different carb?
Who the “F” are you?

STFU & YOU! GFY!!!!

His car his way and screw anybody that’s got ill words for his choices.
If you don’t like his choice, make him an offer to purchase the car and do correctly.
But for sure! Post ever step of the process here so we can rip you apart and your choices. I’ll be sure to join along and take special aim at ridicule just for you all special like.

Get over yourself.

weather old school or young.....it seems everyone has there opinion on boundry lines when building a engine and or the entire car/truck....me...old wrench...never could understand putting a chevy engine into a ford or mopar...yah cheap..easy to repair , parts everywhear....but its just wrong in my book...but its my book...i dont poo poo others for what they do..matter of fact some frankinstiane builds ive seen are...well...interesting....when i asked why.....those who spoke truth just said...........its what i had!!!!!....back in the day....60s the fad was putting the hemi's in anything that was worth of willing pinks......dont tell anyone..but my 41 ply coupe....had....oh my im letting it out...ahh..ok..69 camaro buckets....i know...sacrilege.......its what i had!!!!!