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rochester 2 gc on 241 hemi!

Posted By: dart9ss

rochester 2 gc on 241 hemi! - 03/08/21 01:41 PM

helping out a friend with dual rochester carbs. its a 32 coupe very light ! The old hemi is stock cam , so its a small power plant , factory rated.140 hp my question bolting on an additional cfm and fuel i would think a progresive linkage set up my be the way to go. Low compression 7 -1. any one with experience with bolting on additional carb on a low hp engine .
Posted By: Sniper

Re: rochester 2 gc on 241 hemi! - 03/08/21 10:34 PM

Originally Posted by dart9ss
helping out a friend with dual rochester carbs. its a 32 coupe very light ! The old hemi is stock cam , so its a small power plant , factory rated.140 hp my question bolting on an additional cfm and fuel i would think a progresive linkage set up my be the way to go. Low compression 7 -1. any one with experience with bolting on additional carb on a low hp engine .


Well, FWIW, I put a second carb on my 218 flathead, direct linkage. But that's more due to the intake design than anything else. I would look at the intake and visualize how progressive linkage might starve some cylinders.
Posted By: dart9ss

Re: rochester 2 gc on 241 hemi! - 03/09/21 01:25 AM

yes good point. thanks
Posted By: Ply36

Re: rochester 2 gc on 241 hemi! - 03/25/21 10:14 PM

I put an Offenhauser 3 X 2 manifold with Rochester 2G carburetors on my 241 Hemi with great results. My engine was built up with higher compression, reground cam, headers, and Mallory ignition, etc.. It never felt like too much carburetor.. The linkage and fuel lines were fabricated by Hotrod Carburetion out of Holden, Missouri. This was a number of years ago so I don't know if they are still around. I tried to include a picture of my setup, but no luck.
Posted By: dart4forte

Re: rochester 2 gc on 241 hemi! - 03/30/21 02:29 PM

Originally Posted by Ply36
I put an Offenhauser 3 X 2 manifold with Rochester 2G carburetors on my 241 Hemi with great results. My engine was built up with higher compression, reground cam, headers, and Mallory ignition, etc.. It never felt like too much carburetor.. The linkage and fuel lines were fabricated by Hotrod Carburetion out of Holden, Missouri. This was a number of years ago so I don't know if they are still around. I tried to include a picture of my setup, but no luck.



Be cool to see. I have a 241 sitting on a pallet. Is it this manifold?

Attached picture 738761C1-3A74-4AD9-99CD-69413A62E42E.jpeg
Posted By: moparx

Re: rochester 2 gc on 241 hemi! - 03/31/21 03:58 PM

that is art ! up up
VERY GOOD craftsmanship in that item for sure ! bow
beer
Posted By: dart4forte

Re: rochester 2 gc on 241 hemi! - 03/31/21 05:32 PM

Originally Posted by moparx
that is art ! up up
VERY GOOD craftsmanship in that item for sure ! bow
beer


Seems they make manifold for all the early hemis.

https://www.hellsgatehotrods.com/shop/dodge-hemi-241-325-4x2-intake-for-strombergs/

Posted By: moparx

Re: rochester 2 gc on 241 hemi! - 04/01/21 04:01 PM

the price isn't that bad for the craftsmanship. i am surprised.
as these are special ordered, the turnaround time of 3-6 weeks isn't bad either.
beer
Posted By: dOoC

Re: rochester 2 gc on 241 hemi! - 04/02/21 12:03 AM

Originally Posted by moparx
the price isn't that bad for the craftsmanship. i am surprised.
as these are special ordered, the turnaround time of 3-6 weeks isn't bad either.
beer


Anutter fine report from THE GUY who worked on these carbs when they were considered HI TECH .....

........ baaaaack in the day ! boogie

.,way waaaay back ! penguin
Posted By: dart9ss

Re: rochester 2 gc on 241 hemi! - 04/18/21 09:04 AM

finally got the 33 dodge running. the 2 carbs with the linkage runs sweet. just have to tune them in with a vacuum gauge, real happy on the throttle response. next get the rest of the car done.

Attached picture 33 dodge 1.jpg
Attached picture 20210416_154054.jpg
Posted By: poorboy

Re: rochester 2 gc on 241 hemi! - 04/18/21 11:37 AM

Nice! Simple and pure, what more could a guy want? Good Job. Gene
Posted By: dart4forte

Re: rochester 2 gc on 241 hemi! - 04/18/21 01:25 PM

Originally Posted by dart9ss
finally got the 33 dodge running. the 2 carbs with the linkage runs sweet. just have to tune them in with a vacuum gauge, real happy on the throttle response. next get the rest of the car done.



Which manifold is that?
Posted By: moparx

Re: rochester 2 gc on 241 hemi! - 04/18/21 04:42 PM

i like the car just the way it is ! boogie
if that is an iron intake, could that be a truck item ?
i remember some pictures i ran across one time showing either a truck or an industrial, may have even been a marine application, that was a factory dual carb intake that wasn't a 2-4 intake.
shortly after i saw those pictures, there was the same intake popped up on the feebag. it was just the intake, but i was out bid.
this was many years ago, and i haven't seen any since, although i haven't been looking very hard either.
beer
Posted By: dart9ss

Re: rochester 2 gc on 241 hemi! - 04/18/21 09:00 PM

Offenhauser intake with Rochester 2 gc. this motor purrs. Thanks beer
Posted By: dart4forte

Re: rochester 2 gc on 241 hemi! - 04/19/21 04:16 AM

[spoiler][/spoiler]
Originally Posted by dart9ss
Offenhauser intake with Rochester 2 gc. this motor purrs. Thanks beer



241?
Posted By: dart9ss

Re: rochester 2 gc on 241 hemi! - 04/20/21 04:41 AM

241 1954 red ram.
Posted By: dart4forte

Re: rochester 2 gc on 241 hemi! - 04/25/21 04:25 PM

Originally Posted by dart9ss
241 1954 red ram.



Cool, I getting ready to do a 241. Gathering the parts. I’d like to find a roadster to put it in
Posted By: moparx

Re: rochester 2 gc on 241 hemi! - 04/25/21 05:41 PM

back around 1974 or so, i saw an add in the NSRA [National Street Rod Association] publication, Street Scene, for some chrome 392 hemi parts. they were only $35-40.00 [i forget exactly] so i bought them, sight unseen.
when they showed up, they were pretty daggone nice ! valve covers, spark plug covers, brackets, water pump and housing, pulleys, etc. i waxed them up, put them in newspaper, and stashed them away.
when i bought this house in 1983, the box this stuff was in made it's way to the "junk room".
fast forward to about a month or 6 weeks ago, i started to clean out the "junk room". [anyone need any christmas decorations ? biggrin] anyway, i knew this stuff was in there and i came across the box. unpacked it, and was shocked at what i saw ! now not to worry, the chrome is just as nice as it was all those years ago when i packed the stuff away.
what i discovered was, this stuff is for a 241, NOT a 392 ! eek
AND, it just so happens, i HAVE a 241 on the shelf ! looks like i have a 241 build in my future. boogie
beer
Posted By: dart9ss

Re: rochester 2 gc on 241 hemi! - 04/27/21 01:59 AM

great story u never know what we box up and look surprised years later when it shows up again!! up
Posted By: Tony21

Re: rochester 2 gc on 241 hemi! - 06/01/21 02:36 PM

It turned out great!
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