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Choke Photo Needed

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Old Apr 9, 2025 | 08:45 AM
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Default Choke Photo Needed

I may have to get rid of my electric choke due to clearance issue with dropped air cleaner. I would appreciate a good photo of an OEM style choke so I can see how to rig one up if needed. Big block with high rise intake.

Better yet can I just eliminate the choke in South Carolina?

Last edited by 68/BB; Apr 9, 2025 at 09:08 AM.
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Old Apr 9, 2025 | 01:34 PM
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Found this: https://www.corvetteforum.com/forums...ced-choke.html


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Old Apr 9, 2025 | 01:38 PM
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well not sure about your year or motor, but assume from pic..BB 68 427

greatest resource in world..in this thread by Lars. Unfortunately photo bucket expired on most.. but some remain in later posts. I would reach out to Lars if the pics are not enough that remain.

https://www.corvetteforum.com/forums...jet-carbs.html

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Old Apr 9, 2025 | 01:47 PM
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The choke coil is the same for 1968-1969 BB. GM part #3887148.
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Old Apr 10, 2025 | 03:46 PM
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Originally Posted by 68/BB
I may have to get rid of my electric choke due to clearance issue with dropped air cleaner. I would appreciate a good photo of an OEM style choke so I can see how to rig one up if needed. Big block with high rise intake.

Better yet can I just eliminate the choke in South Carolina?
To determine if you need a choke, disconnect the power wire and adjust the choke so that it is wide open when cold.
Would need to know exactly what intake you have and what carburetor to suggest a different choke.
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Old Apr 12, 2025 | 01:01 AM
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Originally Posted by sunflower 1972
The choke coil is the same for 1968-1969 BB. GM part #3887148.
Actually, it's not. That's a big problem with vendors that think it is, and for owners who don't know the difference. The 1968 BB Q-Jet is a 1-year-only unique design that has the counter-weighted "duckbill" choke, and it is a "reverse rotation" choke that has the choke coil operating the opposite direction than the 1969+ choke coils.

1968 427 Q-Jet with the unique '68 "duckbill" choke. Note that the choke rod attach point is forward of the choke rotation point, so the choke rod must push "up" to close the choke:


1969 427 choke, using the standard, small-block style choke system. Note that the choke rod attach point has been moved to the rear of the choke pivot point, and the choke rod pulls "down" to close the choke:


Lars
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Old Apr 12, 2025 | 02:16 PM
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Sorry, but I can only go by the information the General has supplied to me via the parts catalog. If this was "back in the day" and I gave this choke stat to a mechanic and he came back and explained as you have that it was wrong, I would be giving **** (Service Parts Assistance Center) a call. Parts catalog mistakes weren't very common, but they did happen.



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Old Apr 12, 2025 | 05:02 PM
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In a different post he is using an Edelbrock 1411 not a Quadrajet. Still don't know what "hi rise" intake is being used.
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Old Apr 12, 2025 | 06:21 PM
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Originally Posted by MelWff
In a different post he is using an Edelbrock 1411 not a Quadrajet. Still don't know what "hi rise" intake is being used.
GM Casting Number 3933163; Dated 10 27 69; Rectangular Port


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Old Apr 12, 2025 | 10:07 PM
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Originally Posted by 68/BB
GM Casting Number 3933163; Dated 10 27 69; Rectangular Port
That uses a divorced choke assembly originally used with a Holley.
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Old Apr 13, 2025 | 02:52 PM
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Originally Posted by MelWff
That uses a divorced choke assembly originally used with a Holley.

Yes, I was hoping someone had a photo of what that looked like installed, just for reference info
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Old Apr 13, 2025 | 03:35 PM
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Originally Posted by 68/BB
Yes, I was hoping someone had a photo of what that looked like installed, just for reference info
Look at the pictures in this link
https://www.corvetteforum.com/forums...lley-carb.html
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Old Apr 14, 2025 | 11:17 PM
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Originally Posted by MelWff

Thanks! That is helpful. I have a divorce choke on order that is intended to work on my manifold. Now I just hope it "marries" up with that Edelbrock. I may have to MacGyver some of the links but keeping my fingers crossed. Thanks again.
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