Any Rochester 2GV experts? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CSGAS · 08-30-2009, 12:51 AM

I have a carb that neither matches the truck nor the engine in the truck. PO is not able to help...this mystery carb is a small-base model I originally thought was a 2G but on closer examination must be a 2GV with the choke mechanism and linkage removed. A generic manual choke cable is hooked up, and the vacuum port on the back was open when I found it (I capped it instantly).

When I thought it was the 1970 carb, I bought a carb kit only to find the kit fits the large-base models only. I really need to find a kit with gaskets I can use for the small-base 2GVs and hopefully instructions that will get me in the right ballpark for float and the other settings, to work with the 305 currently in the truck. The casting number...are you sure you are ready for this? sit down...says 7349999. Yup. It also has a bowtie under the number. I can only guess this means a OEM replacement or service replacement of the carb or at least the body, using a casting from a mold originally made in 1964...any better ideas?

I am mainly looking for recommendations on the carb kit to use. Right now, I am planning on going into NAPA tomorrow and trying to ask for a kit meant for a 1968 307 equipped truck, which is at least A small-base 2GV vehicle...

dwcsr · 08-30-2009, 01:38 AM

are you sure about the numbe being 7349999? You may have a non chevy carter carb. They look very similar to rochester carbs and GM used them interchangably.

cdowns · 08-30-2009, 05:13 AM

try looking thru speedway motors catalogue i believe they have parts for those carbs

CSGAS · 08-30-2009, 01:24 PM

I'm going to throw another number into the mix. The side of the float bowl (on the main body) has a number 7034997. I believe this is a part number, not an application number, but it is more consistent with Rochester parts than the "73~" number is.

The "73~" number is on the top over the float bowl, along with that bowtie and a raised "2-Jet" impression.

Thanx to everyone for trying to help so far...I did check out Speedway, and they seem to have either whole carbs, Tri-power kits, or modification kits. I am hoping to stay away from things that expensive...they do seem to have some rebuild kits, if I can find out which one to order!

This definitely is not a Carter BBD, is there a different Carter carb that you are referring to?

08-30-2009, 12:51 AM	#1
CSGAS optomistic ah-so Join Date: Mar 2009 Location: Charlotte, NC Posts: 544	Any Rochester 2GV experts? I have a carb that neither matches the truck nor the engine in the truck. PO is not able to help...this mystery carb is a small-base model I originally thought was a 2G but on closer examination must be a 2GV with the choke mechanism and linkage removed. A generic manual choke cable is hooked up, and the vacuum port on the back was open when I found it (I capped it instantly). When I thought it was the 1970 carb, I bought a carb kit only to find the kit fits the large-base models only. I really need to find a kit with gaskets I can use for the small-base 2GVs and hopefully instructions that will get me in the right ballpark for float and the other settings, to work with the 305 currently in the truck. The casting number...are you sure you are ready for this? sit down...says 7349999. Yup. It also has a bowtie under the number. I can only guess this means a OEM replacement or service replacement of the carb or at least the body, using a casting from a mold originally made in 1964...any better ideas? I am mainly looking for recommendations on the carb kit to use. Right now, I am planning on going into NAPA tomorrow and trying to ask for a kit meant for a 1968 307 equipped truck, which is at least A small-base 2GV vehicle... __________________ Rubbing is Racin' Ribbing is Bench Racin' 1970 C-10 lwb Fleetside. Originally 350 2-bbl 3-on-the-tree, m/b, m/w, m/s no a/c. Currently running on a '76 Camaro 305.

08-30-2009, 01:38 AM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Any Rochester 2GV experts? are you sure about the numbe being 7349999? You may have a non chevy carter carb. They look very similar to rochester carbs and GM used them interchangably.

08-30-2009, 05:13 AM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Any Rochester 2GV experts? try looking thru speedway motors catalogue i believe they have parts for those carbs __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

08-30-2009, 01:24 PM	#4
CSGAS optomistic ah-so Join Date: Mar 2009 Location: Charlotte, NC Posts: 544	Re: Any Rochester 2GV experts? I'm going to throw another number into the mix. The side of the float bowl (on the main body) has a number 7034997. I believe this is a part number, not an application number, but it is more consistent with Rochester parts than the "73~" number is. The "73~" number is on the top over the float bowl, along with that bowtie and a raised "2-Jet" impression. Thanx to everyone for trying to help so far...I did check out Speedway, and they seem to have either whole carbs, Tri-power kits, or modification kits. I am hoping to stay away from things that expensive...they do seem to have some rebuild kits, if I can find out which one to order! This definitely is not a Carter BBD, is there a different Carter carb that you are referring to? __________________ Rubbing is Racin' Ribbing is Bench Racin' 1970 C-10 lwb Fleetside. Originally 350 2-bbl 3-on-the-tree, m/b, m/w, m/s no a/c. Currently running on a '76 Camaro 305.



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