I need some help to confirm if I have the right carb for my restoration project.
I don't know the history behind the truck, so who know's what might have happened in the past 52 years.

When I got the engine running, it was clear I had blown exhaust gaskets. So I removed the intake & exhaust manifolts along with carb and oil filter. One exhaust stud flange was partially cracked off. Heat Riser is siezed. Overall, in very rusty condition. I managed to find a really nice replacement (almost new looking) original exhaust manifold. Still working on removing the bottom studs though... My intake looks like new.

I've cleaned up the carb, and noticed that the throtle bore is much smaller than the manifold insulator. So do I have an original 235 carb, or something smaller? No tabs on the carb with the proper part numbers. Here is what I can find and measure.

Rochester manual choke B
4509 stamped on top of Air Horn near choke shaft.
Top Air Horn 7004510
Bottom Bowl 7004516
Throtle housing 7002128 (G?) (hard to read) 1.570" (1-9/16") bore.
Insulator has a 1.700" (1-11/16") bore.
Intake Manifold 3836922 1.800" (1-13/16") bore.

I would have expected the Throtle housing to have the same bore diameter as the Insulator, and manifold.

I've checked the various oldcarmanualproject.com pages, and none of my part numbers seem to match.

Appreciate your help.

Thanks in advance.

Last edited by John D; 06/21/2010 2:56 PM.
When God gives any man wealth and possessions, and enables him to enjoy them, to accept his lot and be happy in his work�this is a gift of God. He seldom reflects on the days of his life, because God keeps him occupied with gladness of heart. Ecclesiastes 5:19-20