The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-04-2018, 03:51 PM   #1
el_fantasma
Senior Member
 
el_fantasma's Avatar
 
Join Date: Oct 2016
Location: Redwood City CA
Posts: 525
Edelbrock 1406 automatic choke

Iím 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
__________________
72 White Cheyenne, The Ghost
el_fantasma is offline   Reply With Quote
Old 11-04-2018, 04:04 PM   #2
68 P.O.S.
Slow Member
 
Join Date: Jan 2007
Location: University Place, WA
Posts: 850
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.
__________________
72 C10 lwb fleetside -stock 350/350 combo

Last edited by 68 P.O.S.; 11-04-2018 at 04:12 PM.
68 P.O.S. is offline   Reply With Quote
Old 11-04-2018, 04:14 PM   #3
68 P.O.S.
Slow Member
 
Join Date: Jan 2007
Location: University Place, WA
Posts: 850
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.
__________________
72 C10 lwb fleetside -stock 350/350 combo
68 P.O.S. is offline   Reply With Quote
Old 11-04-2018, 04:59 PM   #4
ZEKE68
Senior Member
 
ZEKE68's Avatar
 
Join Date: Jul 2012
Location: Space Coast, Florida
Posts: 376
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.
__________________
1968 SWB Step Side, Big Block, 4L80E , Running!
ZEKE68 is offline   Reply With Quote
Old 11-04-2018, 09:45 PM   #5
HO455
Registered User
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 4,435
Re: Edelbrock 1406 automatic choke

What are your reasons for making the change as opposed to rebuilding your existing Qjet?
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F3 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB http://67-72chevytrucks.com/vboard/s...d.php?t=698377
HO455 is offline   Reply With Quote
Old 11-04-2018, 10:15 PM   #6
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 10,076
Re: Edelbrock 1406 automatic choke

Or buying a quality quadrajet replacement.
geezer#99 is offline   Reply With Quote
Old 11-04-2018, 10:37 PM   #7
el_fantasma
Senior Member
 
el_fantasma's Avatar
 
Join Date: Oct 2016
Location: Redwood City CA
Posts: 525
Re: Edelbrock 1406 automatic choke

Quote:
Originally Posted by HO455 View Post
What are your reasons for making the change as opposed to rebuilding your existing Qjet?

Or buying a quality quadrajet replacement.
I donít have the time and skills to rebuild it myself. I figured the edlebrock 1406 was a popular replacement. Itís mentioned in a lot of other posts. I know itís still a carb but thought it benefited from 45 years of improvement. Basically, I donít know anything and appreciate any suggestions.
__________________
72 White Cheyenne, The Ghost
el_fantasma is offline   Reply With Quote
Old 11-04-2018, 10:54 PM   #8
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 10,076
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
geezer#99 is offline   Reply With Quote
Old 11-04-2018, 11:14 PM   #9
HO455
Registered User
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 4,435
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.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F3 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB http://67-72chevytrucks.com/vboard/s...d.php?t=698377
HO455 is offline   Reply With Quote
Old 11-04-2018, 11:18 PM   #10
57larry
Registered User
 
Join Date: Nov 2007
Location: Indianapolis
Posts: 991
Re: Edelbrock 1406 automatic choke

I have the same carb on my 350. I pump the gas twice, starts right up
57larry is offline   Reply With Quote
Old 11-05-2018, 01:39 AM   #11
OregonNed
Long time Chevy fan
 
OregonNed's Avatar
 
Join Date: Dec 2012
Location: Vancouver, Washington
Posts: 1,071
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
__________________
1968 Chevrolet C/10 LWB - 327, TH350
OregonNed is offline   Reply With Quote
Old 11-05-2018, 01:55 AM   #12
3drburb
Registered User
 
3drburb's Avatar
 
Join Date: Jul 2011
Location: Kent, WA.
Posts: 701
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.
3drburb is offline   Reply With Quote
Old 11-05-2018, 04:27 AM   #13
County
Registered User
 
Join Date: Jun 2016
Location: Apache, OK
Posts: 33
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.
County is offline   Reply With Quote
Old 11-05-2018, 09:23 AM   #14
S_Gibson
Registered User
 
S_Gibson's Avatar
 
Join Date: Jun 2018
Location: Winston Salem, NC
Posts: 75
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?
__________________
Stupidity was meant to be painful!
S_Gibson is offline   Reply With Quote
Old 11-05-2018, 09:42 AM   #15
rockyrivermark
Registered User
 
Join Date: Apr 2011
Location: Fairview Park, Ohio
Posts: 656
Re: Edelbrock 1406 automatic choke

Quote:
Originally Posted by 57larry View Post
I have the same carb on my 350. I pump the gas twice, starts right up
Yep.. great choice. I have the same set up.
just works. no problems.
Mark
__________________
My build page
http://67-72chevytrucks.com/vboard/s...d.php?t=764662
My cabinet building site
http://www.cbcabinets.com
rockyrivermark is offline   Reply With Quote
Old 11-05-2018, 10:15 AM   #16
slowcpe
Registered User
 
slowcpe's Avatar
 
Join Date: Sep 2013
Location: Evansville, IN
Posts: 1,710
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.
__________________
Ryan
1967 Red Stepside..."Laymond" http://67-72chevytrucks.com/vboard/s...40#post6441840
1972 Medium Olive SWB-Chester http://67-72chevytrucks.com/vboard/s...d.php?t=759628
1967/71 Blue SWB C10..SOLD
1977 SWB K10..my grandpa's.....never should have sold
slowcpe is offline   Reply With Quote
Old 11-05-2018, 10:23 AM   #17
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 10,076
Re: Edelbrock 1406 automatic choke

Quote:
Originally Posted by S_Gibson View Post
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?
If that one foot of hose is on the motor then the longer you wait to replace it the higher the flames will be when you get a leak.
geezer#99 is offline   Reply With Quote
Old 11-05-2018, 03:00 PM   #18
S_Gibson
Registered User
 
S_Gibson's Avatar
 
Join Date: Jun 2018
Location: Winston Salem, NC
Posts: 75
Re: Edelbrock 1406 automatic choke

Quote:
Originally Posted by geezer#99 View Post
If that one foot of hose is on the motor then the longer you wait to replace it the higher the flames will be when you get a leak.
Yeah. It is on my list. Been reviewing pictures trying to figure out how to run all tubing from the fuel pump to the carburetor. I keep reading about a regulators. Are these required? I don't have one on mine and it runs fine.

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.
Attached Images
 
__________________
Stupidity was meant to be painful!
S_Gibson is offline   Reply With Quote
Old 11-05-2018, 05:00 PM   #19
Andy4639
Orignal Goof member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 16,811
Thumbs up 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.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 11-06-2018, 10:19 AM   #20
ZEKE68
Senior Member
 
ZEKE68's Avatar
 
Join Date: Jul 2012
Location: Space Coast, Florida
Posts: 376
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.
__________________
1968 SWB Step Side, Big Block, 4L80E , Running!
ZEKE68 is offline   Reply With Quote
Old 11-06-2018, 12:25 PM   #21
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 10,076
Re: Edelbrock 1406 automatic choke

Quote:
Originally Posted by ZEKE68 View Post
"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.
So true seek.
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.
geezer#99 is offline   Reply With Quote
Old 11-09-2018, 11:56 AM   #22
el_fantasma
Senior Member
 
el_fantasma's Avatar
 
Join Date: Oct 2016
Location: Redwood City CA
Posts: 525
Re: Edelbrock 1406 automatic choke

Hi guys

Thanks for your comments, I really appreciate it. Iíve decided to have SMI rebuild my existing carburetor. https://www.smicarburetor.com/produc.../productID/428

My reasoning
  • It will save me a few bucks
  • Truck is already set up
  • Keeps another original part (nostalgia)

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
__________________
72 White Cheyenne, The Ghost
el_fantasma is offline   Reply With Quote
Old 11-09-2018, 12:07 PM   #23
GASoline71
"I ain't nobody, dork."
 
GASoline71's Avatar
 
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,430
Re: Edelbrock 1406 automatic choke

Good choice. I'd rebuild and reuse a Q-jet any day over a Edelbrock carb.

Gary
__________________
'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
GASoline71 is offline   Reply With Quote
Old 11-09-2018, 12:20 PM   #24
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 10,076
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.
geezer#99 is offline   Reply With Quote
Old 11-09-2018, 06:38 PM   #25
Eddie H.
Registered User
 
Eddie H.'s Avatar
 
Join Date: Mar 2001
Location: Paradise TX USA
Posts: 1,195
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.
__________________
"Negative people always seem to have a problem for every solution"
Eddie H. is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:57 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com