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#1 |
Registered User
![]() Join Date: Sep 2017
Location: Sunny CA
Posts: 59
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Divorced divorced choke?
Wondering how important the divorced choke is on a 350 crate engine? I found a few pieces of thin bar metal, on top of the intake manifold near the spring below the carburetor... from what I could find the spring is the divorced choke?
Truck seems to run fine, but I don't know if these parts were disconnected previously or fell off over the years before I bought it. I was looking at replacing the intake manifold anyways, and some of the ones I was looking at don't have the spring piece or come with a plate to block it off. Does the divorced choke depend on the carburetor on the truck or is it something that is required for a good running engine? If i bought a new intake manifold, will I just use the plate to block off that spring? In the pics the closeup are the parts I found on the manifold, the location is in the middle of the other pic, between the valve cover and the carb. ![]() |
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#2 |
Registered User
Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: Divorced divorced choke?
Looks like you have an Edelbrock Carb and it has an Electric choke. Just stay with that . If its running Good just leave it. Does it get cold where you are at?
Ron
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Member #111 68 C-10 ![]() 70 ![]() 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson Last edited by Husker; 09-20-2017 at 10:47 PM. Reason: Grammar |
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#3 |
Registered User
![]() Join Date: Sep 2017
Location: Sunny CA
Posts: 59
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Re: Divorced divorced choke?
Ah ok so the black part with wires coming off it controls the choke...? Yes it gets cold enough to snow but only barely, and only for a few weeks a year. We usually see lows of 35 Fahrenheit on average. Think that's cold enough to make a difference?
Thanks! ![]() |
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#4 |
Registered Chevy Owner
Join Date: Aug 2008
Location: Snohomish, wa
Posts: 1,557
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Re: Divorced divorced choke?
I'd keep the electric choke. There no need to mess with something that works.
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Love is fleeting, but Chevy trucks are forever!!!! ![]() 1970 Chevy CST C10 long box 350/400 ![]() 2008 Chevy Silverado short box 4x4 Had; 1951 Chevy short box 307/T5 1988 Chevy shot box 4x4 350/350 1971 Chevy C10 long box 4x4 350/350 1971 Chevy C20 long box 350/350 1971 Chevy C10 long box 350/350 |
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#5 |
Registered User
Join Date: Jun 2013
Location: West Virginia
Posts: 6,421
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Re: Divorced divorced choke?
If it's not broken don't fix it.
My dad's truck didn't start very easily or was slow to warm up. He put a manual choke on it using the cigarette lighter delete. Pull choke, start, and go. ![]() WV gets a wee bit colder than CA though. Tends to snow a bit more and vehicles rust more for some strange reason. ![]() |
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#6 |
Senior Member
![]() Join Date: Oct 2013
Location: Santa Paula, CA
Posts: 600
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Re: Divorced divorced choke?
Those small rods are how the thermostatic spring element nestled in the intake manifold actuate the choke plate on factory equipped carbs.
As the others before me have stated, you have an electric choke setup. Which is an improvement over the factory setup. It looks like whoever installed the carb just left the old divorced choke setup in place. Personally I would remove it, just to have around incase you ever had an issue with the electric choke. ( which is very rare.) I kept my original quadrajet on my '72 C10 with the O.E. Cast iron Intake on my engine. It was a PITA to maintain because of the age of the parts. It had a constant vacuum leak due to the exhaust crossover passage in the factory manifold being erroded away. I scored an Edlebrock Performer Aluminum Intake on Craigslist for $60. Lighter,newer, improved design, and had a spreadbore mounting flange for my factory Quadrajet. The downside was that the factory divorced choke setup wouldn't crossover to Edlebrock's intake design. So I had to buy a new divorced choke setup and the rod in order to have my choke function correctly. Cost me almost $50 for the right setup from Edlebrock. But it was worth it considering the price I paid for the intake, had I not been able to find a spreadbore intake that cheap, I would have upgraded my carb as well as the intake and gone with an electric choke setup (which is always an option in the future.) ![]() Unless you are set on keeping the factory intake, I highly recommend an aluminum intake. Shaving at least 20 pounds off your engine and frontend is worth it, let alone the potential power gains from an aluminum intake. Having a square bore carb means you have more options as far as choices of manufacturers and performance increases. It was a no brainer for me. ![]()
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1972 C/10 LWB - Mine 1964 C/10 LWB - My Dad's Instagram: Mike_The_Grad |
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#7 |
Registered User
Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Re: Divorced divorced choke?
since you have a choke, an electric choke, and it works; keep it. but if it gives you any problems, go for a manual choke.
ensure that you have good grounds between the intake and the bloke, and the bloke and the frame and also the body |
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#8 |
Registered User
Join Date: Mar 2007
Location: San Pedro River, SE Arizona
Posts: 734
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Re: Divorced divorced choke?
Seems like I have every possible variation of choke on the Chev/GM engines here and it gets plenty cold at 8,000 ft., so need for them to work well. The OEM divorced setup is fine as long as the linkage is clean/correct that the thermostatic spring has life. If not, I go to a manually operated setup - simplest and best - although I have three trucks that came with electric choke on Edelbrock or Carter AFB and they have been good so far.
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CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp |
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#9 | |
Registered User
![]() Join Date: Sep 2017
Location: Sunny CA
Posts: 59
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Re: Divorced divorced choke?
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#10 | |
Registered User
![]() Join Date: Sep 2017
Location: Sunny CA
Posts: 59
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Re: Divorced divorced choke?
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#11 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,625
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Re: Divorced divorced choke?
Get the 7101.
It has a square bore flange you need for your square bore carb. A 2101 is a spreadbore intake that requires an adaptor for your carb to work without any vacuum leaks. |
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#12 |
Registered User
Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
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Re: Divorced divorced choke?
go to summit's website and get the edelbrock performer airgap aluminum manifold for the square bore carb you have....I am running that intake and the edelbrock carb with electric choke....runs awesome on my new gm crate 350.....says the airgap is not for street use, but no one checks and they perform better than the standard performer intakes....I also run the 1" spacer between the carb and manifold...make sure you follow the instructions on installing the manifold, you use silicone on the ends of the manifold to seal it, not the gaskets that come in the package.and you only torque the bolts to around 20 ft lbs
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#13 | |
Registered User
![]() Join Date: Sep 2017
Location: Sunny CA
Posts: 59
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Re: Divorced divorced choke?
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#14 | |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,625
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Re: Divorced divorced choke?
Quote:
You'll need a better spacer made from wood or phenolic resin. |
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