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11-04-2018, 03:51 PM | #1 |
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Edelbrock 1406 automatic choke
I’m considering switching to this carb for my 1972 with 350. I have the original Rochester 4 barrel.
https://www.jegs.com/i/Edelbrock/350/1406/10002/-1 I notice it has an electric choke which I assume works off of engine temp? Is it better than a manual choke? To start the truck, do you still mash on the gas pedal before turning the key? Sorry for the newbie question. Rob
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72 White Cheyenne, The Ghost |
11-04-2018, 04:04 PM | #2 |
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Re: Edelbrock 1406 automatic choke
The choke on the 1406 is electric. It operates a thermal coil that adjusts the choke as it warms up. Fast idle should be adjusted to about 1500rpm.
To start it, you pump the pedal once to engage the choke, another pump if you want to squirt a little extra fuel, and start her up.
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72 C10 lwb fleetside -stock 350/350 combo Last edited by 68 P.O.S.; 11-04-2018 at 04:12 PM. |
11-04-2018, 04:14 PM | #3 |
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Re: Edelbrock 1406 automatic choke
To make that switch you need a spreadbore to squarebore adapter between the carb and intake. Edelbrocks are also finicky with fuel pressure so you'll need a fuel pressure regulator set to 5.5 psi as well.
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72 C10 lwb fleetside -stock 350/350 combo |
11-04-2018, 04:59 PM | #4 |
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Re: Edelbrock 1406 automatic choke
The electric choke on the 1406 does not operate based on engine temperature. Its just a time thing as to how long it takes the electric heater in the housing once the key is turned on to heat up the bi metal strip to back the choke off. The housing can be adjusted for more choke (and longer time on) or less choke.
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1968 SWB Step Side, Big Block, 4L80E , Running! |
11-04-2018, 09:45 PM | #5 |
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Re: Edelbrock 1406 automatic choke
What are your reasons for making the change as opposed to rebuilding your existing Qjet?
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11-04-2018, 10:15 PM | #6 |
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Re: Edelbrock 1406 automatic choke
Or buying a quality quadrajet replacement.
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11-04-2018, 10:37 PM | #7 |
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Re: Edelbrock 1406 automatic choke
I don’t have the time and skills to rebuild it myself. I figured the edlebrock 1406 was a popular replacement. It’s mentioned in a lot of other posts. I know it’s still a carb but thought it benefited from 45 years of improvement. Basically, I don’t know anything and appreciate any suggestions.
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11-04-2018, 10:54 PM | #8 |
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Re: Edelbrock 1406 automatic choke
If you have a stock intake you’ll need an adaptor.
Fuel line needs to be extended. Linkage needs possibly a different bracket. You might need a jetting kit. Rarely you’ll need a new fuel pump or regulator. That puts you over 400 bucks. Close to 500. For under 500 you can have a nice custom built quadrajet. Like here. https://www.smicarburetor.com/produc...ID2/9/sfID3/32 |
11-04-2018, 11:14 PM | #9 |
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Re: Edelbrock 1406 automatic choke
I can only offer my opinion based on my experiences. I have had a 1406 on my Burban for the last year and it works OK. But doesn't give me the satisfaction that I know a solid Qjet will. I have a nice rebuilt Qjet that is just about ready to be installed.
One thing to remember is that those carbs were never installed from the factory on vehicles. The last real carburetor engineering when into the last generation of carburetors that came installed at the factory. The only aftermarket advances in carburetors are pretty much limited to large CFM race carbs. At this point the aftermarket is spending their resources on developing EFI conversion kits. It may be more expensive to get your Qjet rebuilt but in my book you almost always get what you pay for.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
11-04-2018, 11:18 PM | #10 |
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Re: Edelbrock 1406 automatic choke
I have the same carb on my 350. I pump the gas twice, starts right up
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11-05-2018, 01:39 AM | #11 |
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Re: Edelbrock 1406 automatic choke
I’ve had excellent results with mine once the floats were set right and after installing an Edelbrock fuel pump
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1968 Chevrolet C/10 LWB - 327, TH350 - 4/5 Drop |
11-05-2018, 01:55 AM | #12 |
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Re: Edelbrock 1406 automatic choke
I have not had a problem with mines in my Burb . Just buy a new one talk to the sales person and get the needed parts for the changeover, watch the DVD if it comes with one or go on YouTube and enjoy your truck.
Btw, I will be using another one my other truck. |
11-05-2018, 04:27 AM | #13 |
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Re: Edelbrock 1406 automatic choke
You're gonna have Pro-Holley, Pro-Q-jet, Pro-Edelbrock, etc. folks, it's normal.
I've had a variety and went with the Elec choke 1406 on my C-10. The pro about getting a replacement Q-jet is that the truck is already set for it. I like the Edelbrocks personally, so switched out. The 2 big things have already been mentioned. Double check the float level before you install (easy), and make sure your fuel pressure is down to 5.5 or so. Your factory fuel pump will put out much more. Edelbrock has some good basic videos on their website (and the cd that comes with it), and their tech support is top notch. Just give them a call on the phone. One quick full pedal to set choke, then I give it a 1/4 to 1/2 pedal as I turn the key and it fires right up. |
11-05-2018, 09:23 AM | #14 |
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Re: Edelbrock 1406 automatic choke
The truck I bough has an Edelbrock 1405 on it. Not the same as a 1406, but similar. It is a manual choke, but I have never bothered to pull the lever. I pump the throttle a couple times and it fires right up.
I have no preference in carburetors but I've seen no reason to spend money swapping it. It has a new fuel pump on it. I have not replaced the fuel lines yet, but there is about 1 foot of hose I would like to replace. Truck has other items it needs much more. The fuel system was the only system that worked properly so I've left it untouched for now. From what I've determined there is no fuel regulator. What would it do differently if it were added?
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11-05-2018, 09:42 AM | #15 | |
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Re: Edelbrock 1406 automatic choke
Quote:
just works. no problems. Mark
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11-05-2018, 10:15 AM | #16 |
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Re: Edelbrock 1406 automatic choke
I purchased the kit that comes with the 1406 and Performer intake and added a plastic spacer. Been real happy with it. Pump it twice and it fires right up. I had to mess with the choke when it first turned cold but its good now.
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11-05-2018, 10:23 AM | #17 | |
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Re: Edelbrock 1406 automatic choke
Quote:
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11-05-2018, 03:00 PM | #18 | |
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Re: Edelbrock 1406 automatic choke
Quote:
Another thing I noticed that concerned me is that I do not see a fuel filter. Given some of the other things I've found since getting this truck I'm not surprised with anything. I think it would make the most sense to have the fuel filter before the pump, but does it really matter? I had Mustangs that had a filter at the carburetor.
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11-05-2018, 05:00 PM | #19 |
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Re: Edelbrock 1406 automatic choke
I have this carb on my 64 SS Impala after getting the choke fixed and idle set it has been great. Nothing wrong with it at all.
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11-06-2018, 10:19 AM | #20 |
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Re: Edelbrock 1406 automatic choke
"One thing to remember is that those carbs were never installed from the factory on vehicles." Carter AVS, which is the same carb as the Edelbrock Thunder AVS was installed from the factory, by GM and others.
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11-06-2018, 12:25 PM | #21 | |
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Re: Edelbrock 1406 automatic choke
Quote:
The new eddy carbs are just an afb. A couple changes like electric chokes and shiny look. The afb was used on 63 to 65 corvette 327’s, Impala 327’s and dual quad 409’s. And many more. Just an old design made to look better. |
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11-09-2018, 11:56 AM | #22 |
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Re: Edelbrock 1406 automatic choke
Hi guys
Thanks for your comments, I really appreciate it. I’ve decided to have SMI rebuild my existing carburetor. https://www.smicarburetor.com/produc.../productID/428 My reasoning
I just need to figure out a time where the truck can be out of action during the turn around. Thank you Geezer for the link to SMI
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11-09-2018, 12:07 PM | #23 | ||
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Re: Edelbrock 1406 automatic choke
Good choice. I'd rebuild and reuse a Q-jet any day over a Edelbrock carb.
Gary
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11-09-2018, 12:20 PM | #24 |
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Re: Edelbrock 1406 automatic choke
Excellent!
Good price for all that too. Sure beats the eddy price. I’ve had a couple of his carbs. Last one I paid 55 bucks for. Guy I bought it from thought it was a Holley. It came in a Holley box. LOL!! Keep us updated when you get it done. |
11-09-2018, 06:38 PM | #25 |
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Re: Edelbrock 1406 automatic choke
I've never had a problem with Edlebrock carburetors, but my first choice is still a properly built and tuned Q jet.
Sounds like you made the right choice.
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