Rochester 4GC 1965 442 Carburetor Replacement for Original 7025150
#1
Rochester 4GC 1965 442 Carburetor Replacement for Original 7025150
Hello,
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
Last edited by Big Daddy Spo; June 23rd, 2019 at 05:02 PM. Reason: additional info
#3
Thanks!. I sent Oldspackrat a PM, we'll see what turns up. Anyone else with an idea of a suitable replacement for the 7025150 carb in a Rochester 4 Jet? Let me know what number carb I should be looking for.
Thanks
Thanks
#6
Thanks Gerald and Joe. I guess my question is, is there another 4GC carb that has the same CFM and jet sizes for the 65 400 engine? Will any 4GC carb work fine on the BBO engines or is there a specific carb number I should be looking for until I can get a correct one? I do have a 7025055 that came off a 330 engine. Just not sure it will be the right size for the BBO. Thanks for the help
Steve
Steve
#7
Later '65 442 came with q-jet, my August built '65 came with one. http://www.442bro.com/ has the info.
#9
Thanks everyone for the information. The intake manifold on my 400 is for a square-bore carb, so I would gather it had a 4 GC on it. I am running a 67 4 speed Quadrajet that I had with an adapter plate from spread to square,so I can move her around. I will check out the 394 carbs that Charlie mentioned as i think they would be a good fit. What about a 1965 4GC off of one of the fullsize cars that had a 425 in it?
Thanks again,
Steve
Thanks again,
Steve
#12
Later '65 442 came with q-jet, my August built '65 came with one. http://www.442bro.com/ has the info.
#13
Replaced with a 7025050 Carb
So just to tie up this thread, I was able to buy a 1965 Rochester 4GC, Number 7025050 that was found on the 65 425 engine. Found one on *Bay in rebuild-able condition, bought a carb kit from Mikes carbs and set about cleaning and rebuilding. It cleaned up really nice and looked like it had never been apart. Will get it put in place in the next couple of weeks and see how it runs. Have the Quadra-Jet all dialed in now, so I'll leave it till I start the clean-up of the engine.
Steve
Steve
#14
I too have been having issues with my carb. I think I have a 442 carb on my Starfire. Am I correct to have understood that the 4GC carb for the 65 442 had ports in the front bowl to change the jets? That is what mine has and I've not seen another one like it. Mine is on my 65 Starfire and was on it when I bought it. Of course the tag is missing so no way to know for sure except those unusual ports.
#16
#17
1965 442 carburetor
If you find the one for your car, perhaps sell the 65 442 carburetor to the OP “ Big Daddy Spo “of this thread.
Last edited by kjr442; October 28th, 2019 at 06:59 AM. Reason: Adding name
#18
#20
Well I think I bought a pig in a poke. Like this guy I found a carb on Ebay. The tag number 7025255 shows to be from an AC optioned, 1965 fullsize Olds. Cool. My car doesn't have AC but will..So I bought it and didn't notice something strange until it got here. Most Rochester carbs have the large nut on the fuel intake where the filter is, then the large nut has a 3/8" threaded hole. This one does not. A 3/8" nipple screws right into the carb. The markings said they took it off of a 1965 Delta 88 which would be correct. Everything else looks the same even down to the funky vacuum hose extension..I have what is thought to be a 1965 442 carb on my car because it has the ports in the front. No tag but they say it's the only year that had that. But that carb has the filter in the carb. Anyone have any idea what this is? I know the tag could be put on any carb so not even a guarantee that is right. Thanks, John
#21
Hello,
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
Last edited by OldsTechGuy; November 10th, 2019 at 03:11 PM.
#25
feedback was 4jet a dog, so went with edelbrock performer with electronic choke which has been ok. wanted to use the new edelbrock AVS2 but got mixxed opinions...
#26
Hello,
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
#27
Thanks for the update and reply to this thread. I was able to locate a 7025150 carb this past Spring and sent it out for a rebuild. The only problem was the plating shop they use was closed down by the EPA the day my carb was to be sent for the plating. I had them send it back to me rebuilt without the plating, as I didn't want it getting lost while they looked for another plater. It looks great all polished and clean, they even ran it on a test bench for initial set-up. Just not Dichromate colored. It is under the air cleaner, so I'll run it for now.
Steve
Steve
Last edited by Big Daddy Spo; December 26th, 2020 at 09:25 PM. Reason: missing number
#28
Hello,
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
I have a 4 speed 65 Post 442 that has the wrong carburetor on it for the year. I know that the original Rochester 4 Jet carbs were numbers 7025150 or 151. As these were a one year only carb and very hard to find, I was wondering what the next best carb would be in the Rochester 4GC/4Jet model? This has the original 400 ci BBO engine and I have the original air cleaner, so I want to stay with the 4GC model so everything fits under the hood. I have what I think is a 7025055 model 4GC that was on the car when I got it. Does anyone have an idea if I should just run this till I find the Unicorn of carbs or is there a Rochecster 4GC / 4 Jet that would work better for for this engine? If anyone has a 7025150 carb for sale, let me know the condition and price.
Thanks,
Steve
Thread
Thread Starter
Forum
Replies
Last Post
sanemb
General Discussion
3
May 28th, 2008 05:43 PM