Identify This Carb???
#12
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Joined: Jul 2004
Posts: 64
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From: Middle River, Maryland
from the looks of the original height of the choke horn and that it has 4 corner idle I would have to say it was a 850 with a list # 4781-4 or higher. it does not look like a 830 because of the boosters and the linkage.
#15
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Joined: May 2001
Posts: 1,673
Likes: 1
From: Lake Lanier, GA
If it has 172 stamped on the primary butterflies, and 173 stamped on the secondary butterflies it is not a 4781 850. 850 carburetors have 1-3/4" Butterflies. 1-3/4" butterflies have 180 stamped on them. It is most likely a 750 carburetor. If you measure the center of the venturi with a pair of calipers around the booster I can tell you specifically.
#17
Originally Posted by robyw1
It is a Holley 750 Double Pumper 4779 that has aparently been outfitted with Annular boosters. It is not however not a marine carb.
Roby
Roby
#19
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Joined: May 2001
Posts: 1,673
Likes: 1
From: Lake Lanier, GA
Originally Posted by robyw1
It is a Holley 750 Double Pumper 4779 that has aparently been outfitted with Annular boosters. It is not however not a marine carb.
Roby
Roby
Not sure what carburetor you're looking at, the pictures that were posted by strikinLightnin


