rochester 37001 2g carb stage 1

[kurt v]

would this be the proper carb to use on my flatty , with manifold to go with it?
thanks kurt

[petehoovie]

Originally Posted by kurt v

would this be the proper carb to use on my flatty , with manifold to go with it?
thanks kurt

[tubman]

I looked this up on the web, and Jeg's says it is a large base Rochester 2G. The large base carburetors will not fit the Mercury 4-bolt manifolds we all like so well. A small base 2G will bolt right on. The bores of the small base are 1 7/16" which is quite a bit larger than the merc manifold. I bore the manifolds to match the carburetor and have never had a problem breaking through. I don't know if that would be the case with the large base series.

You really want a small base 2G for this. To be specific, you need one from a Chevrolet because of the side placement of the fuel inlet that is just about where the stock inlet is located and allows the use of the stock fuel line. The other carbs (like the one in the picture "petehoovie" posted), have the fuel inlet pointing forward, which requires a much more complicated fuel line.

FYI : The small base bolt pattern is: c-c 3 1/4 x 1 7/8 inches, while the large base is: c-c 3 11/16 x 2 1/16 inches). There are adapters available, but they are expensive because the sizes are so close. https://www.dashman.net/category.php?id=32

[petehoovie]

Four small-base Rochester 2G carburetors, two side inlet


https://www.jalopyjournal.com/forum/...inlet.1249134/

[tubman]

That ad clearly shows the difference between the fuel inlet locations. Too bad it's over 2 years old. Sadly, I have found that inflation has hit the small base 2G market harder than most other things.

[V8COOPMAN]

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Originally Posted by tubman

That ad clearly shows the difference between the fuel inlet locations. Too bad it's over 2 years old. Sadly, I have found that inflation has hit the small base 2G market harder than most other things.

I had watched the LITTLE 2Gs getting more and more expensive going back for quite a while, and I surely haven't been to a swap meet in quite some time. Of course, like everything else we folks piddle with, this junk has gotten old. Some of these damned 2Gs are approaching 70 years old and just hidden away. I guess that makes 97s and 48s downright ancient.

Coop


.

[GB SISSON]

I have neighbor friend who has a 50 year collection of stovebolt chev trucks. Some 216, mostly 235, and 261. His early collecting was ;47--54, but lately has a lot of '55-'57 trucks and parts. Could his stash contain the one we are discussing here?

[tubman]

From the way you describe it, probably several. From my experience, the truck carbs are usually manual chokes, which can be good or bad. Since the Merc's of that era were automatic chokes, matching them up with the proper type of automatic choke carb greatly simplifies installation. However if you like manual chokes, it's a good thing.

[V8COOPMAN]

Originally Posted by GB SISSON

I have neighbor friend who has a 50 year collection of stovebolt chev trucks. Some 216, mostly 235, and 261. His early collecting was ;47--54, but lately has a lot of '55-'57 trucks and parts. Could his stash contain the one we are discussing here?

Chevy's early V8s, the 265 & 283 low-horsepower engines were the ones that featured the 2G carbs. The 6-cylinders tended to have one barrel carbs.

Coop


.

[GB SISSON]

Originally Posted by V8COOPMAN

Chevy's early V8s, the 265 & 283 low-horsepower engines were the ones that featured the 2G carbs. The 6-cylinders tended to have one barrel carbs.

Coop


.

He does have some trucks with the early V8, but I bet he holds those carbs more dear. I'll go by soon and ask what he has. I'll probably run the matched 8ba and sparkomatic, but keeping my options open for now.

[cadillac512]

Originally Posted by GB SISSON

He does have some trucks with the early V8, but I bet he holds those carbs more dear. I'll go by soon and ask what he has. I'll probably run the matched 8ba and sparkomatic, but keeping my options open for now.

Now that you have a lathe, what's keeping you from converting a Chev distributor?