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03-20-2020, 06:03 PM | #1 |
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Join Date: Jun 2016
Location: BC, Canada
Posts: 89
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New Carb Question
The previous owner handed me a remanufactured carburetor when I picked up the truck and I just now compared it to the original one.
There is one item on the base of the new one that I don't know want it is or want it does. It is the silver item to the right of the idle adjustment screws. Terry |
03-20-2020, 06:08 PM | #2 |
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Join Date: May 2010
Location: upstate SC
Posts: 2,963
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Re: New Carb Question
that is the later model "power valve location" I think, got a couple of those myself, look on the bowl of the carb and tell us what is there and the one on your carb
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03-20-2020, 06:15 PM | #3 |
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Join Date: Dec 2013
Location: Minnesota, Florida Keys
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Re: New Carb Question
It's not the power valve. Those are still inside the carburetor like the earlier ones. That is what is called a "Spark Valve". I'm not into the later carbs, so I really am not up on what they do or how they do it, but I can assuredly say that it is not interchangeable with a power valve. I think they may have something to do with making the "Load-a-Matic" work better. Just about every 94 rebuild kit you can buy these days contains both one of these and a regular power valve to cover the maximum amount of applications.
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03-20-2020, 06:28 PM | #4 |
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Location: Lakeland Florida
Posts: 303
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Re: New Carb Question
Denny, this is a good explanation
http://m571.com/yblock/loadomatic.htm |
03-20-2020, 07:44 PM | #5 |
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Location: Detroit suburb, MI
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Re: New Carb Question
The spark valve was added to the Holley for the Y-Block V8 in '54 (EBU carb). It was also used in '55 and '56 on the Holley two barrel (ECG-5 and ECG-6).
The carb you posted with the spark valve appears to be a '55 or '56 truck carb (1 1/16" venturi) that someone installed an earlier throttle shaft and levers on. Sal |
03-21-2020, 11:11 AM | #6 | ||
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Re: New Carb Question
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Quote:
Quote:
Terry |
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03-21-2020, 12:22 PM | #7 |
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Location: Socal
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Re: New Carb Question
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03-21-2020, 01:18 PM | #8 |
Member
Join Date: Jun 2016
Location: BC, Canada
Posts: 89
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Re: New Carb Question
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03-21-2020, 01:21 PM | #9 |
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Location: Socal
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Re: New Carb Question
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03-21-2020, 05:00 PM | #10 |
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Join Date: Jun 2010
Location: Detroit suburb, MI
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Re: New Carb Question
I don't know if Charlie ny is helping out Bubba or not, but I know he also does the Chevy distributor to flathead V8 conversions.
Sal |
03-21-2020, 05:39 PM | #11 |
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Join Date: Dec 2013
Location: Minnesota, Florida Keys
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Re: New Carb Question
Actually, all other things being equal, I prefer "Charlie ny"'s conversions because of the "Hold Down" method. It uses a regular stock Ford distributor clamp setup rather than a set screw.
At least that's the way it was a few years ago when I evaluated them. |
03-21-2020, 07:28 PM | #12 |
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Join Date: May 2010
Location: Oshkosh, Wi
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Re: New Carb Question
I use Charlie's distributors exclusively. As i understand, he is buying Jim's stock of parts for his use. His are the best.
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03-21-2020, 08:28 PM | #13 |
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Location: Socal
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Re: New Carb Question
That's good to know. I'm thinking of ditching my load-o-matic.
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