Fuel System: Rochester 2 bbl

[Caso wannabe]

I know this is a goofy question, but I will ask anyway. Will a Rochester 2 gc fit a late V8 intake with out an adapter? Epay has Chinese copies that flow 352 cfm for $80.thats cheap enough to take a chance.
Thanks Dave

[DEEPNHOCK]

Your question is a good question...

My late father used to tell me that the only dumb question is the one not asked...
My reply to that is that there is no such thing as a dumb question, but there is such a thing as a dumb answer


The bolt pattern is the same.
The Stromberg WW throttle bore is a tad less than 1&7/16" (1.432" to be exact..Just measured one).
Most 2GC throttle bores are 1&1/2" at the flange (according to the chart below)
* However.. I just measured a throttle plate on a fresh 2GC and it measured 1.430"

Have built several intakes to take a 'modified' 2GC and the bores were slightly larger...but the carbs were modified.

Conclusion?
It very well could drop right on without modification. If your new 2GC base is 1&1/2" you could open up the stock Stude 2bbl intake throttle bore (which stock is also 1.432"...just measured one for grins) the 2GC should drop on.

Here's some Internet search info:
(copy)
Below is what the HP Books Rochester Carbs said as far as the 2bls go.

Model 2G.
1 1/4 flange, 1 7/16" throtlle bore,1 3/32" Venturi = 278 CFM @ 3.00 in mercury.

Model 2G.

1 1/2 in flange , 1 11/16" throttle bores.
1 3/16 " venturi = 252 CFM @ 3.00 in mercury.
1 1/4 " venturi = 381 CFM @ 3.00 in mercury.
1 5/16 " venturi = 423 CFM @ 3.00 in mercury.
1 3/8 " venturi = 435 CFM @ 3.00 in mercury.

[Caso wannabe]

Thanks Jeff,that is exactly what I wanted to know.

[Caso wannabe]

According to the website it has 1.250 Venturi's so it should flow 381cfm, that should be a nice little increase over the WW.( Nothing scientific just eyeball). Some vendors have them for as little as $73.00 with free shipping. I believe I am going to give it a try. My old WW hasn't been run in 20 plus years,by the time I get a rebuild kit and clean it up I'll have nearly that in the old carb.
Dave

[PackardV8]

For those who've never done a carb swap, the Rochester 2GCs were used on GM sixes, small block V8s and big block V8s for more than thirty years; there are two different base bolt patterns, a dozen different models, with different fuel inlets, different throttle linkages, different fuel filters.

That some of them have the same base bolt pattern as the Stromberg WW, there will still be many small modifications to the swap.

jack vines

[brngarage]

I had one on a '53 Commander 232 about 50 years ago. I was just a kid then, but it ran great winter (Chicago) and summer.

[Caso wannabe]

Thanks,Jack, I knew it wouldn't be a exact interchange, I will be able to make whatever small parts it needs to make it work.
Dave

[RadioRoy]

How about a link or a website or a description that would allow me to find it easily, please?

[Caso wannabe]

I don't know how to add link, but it is on eBay. Look up Rochester 2 gc, there are a bunch of vendors selling the same thing @ a variety of prices,
Dave

[RadioRoy]

you go to the URL, which is the address on the Internet page you are looking at (starts with http: etcetera)
highlight the URL
control C is copy
go to your reply on this forum
Control V is paste
viola, a link appears that anyone can click on

[Lynn]

I would not buy a chinese knock off. The small Rochester two barrel is a great carb.