XR7-G 390 4v Carb

One of the few times at this past Carlisle that I had time to walk the vendor section I found a guy that specialized in carburetors.

He asked me what I was looking for and I gave him the #s I had for the correct carb for my G.

Turned out he had it, and it needed to be rebuilt.

I went for it and it arrived yesterday.

Watta you G experts think? Is it the right carb?

Manufactured 4th week of July 1967. You tell us, does that date code fit? Looks like a fine job to me but I also see where the roll pins may be missing. What is your date of manufacture?

rcode

According to the Marti, my G was produced May 6 1968. But I’m still not clear if that is the date Smith completed it or Mercury.

Either way, the carb looks to be about 7 months too early.

Wrong carb on the G now that needs rebuilding, so this one will have to do until I run across the perfect one.

  • Phillip

With the air cleaner in place no one will know anything about the date code. Looks pretty good on my screen.

Thanks rcode and Royce :beerchug:

Gonna swap carbs next week.

  • Phillip

I recall that the fuel transfer line needs an additional kink at the back. I will check this out and see if that is a 428 only thing…

You are exactly right Bill - that was the first thing my engine builder noticed when I showed him my “new” carb.

I’ll re-use the line that is on the car currently.

  • Phillip

Here are some more pictures of the carb.

I was testing some new camera equipment - figure these might be good to post for educational purposes.

Phillip




Right carb or not, it looks great. What camera are you using the pictures are excellent

Thanks - I’ve got an older Nikon D50 SLR, but I bought a new electronic flash that I was testing.

  • Phillip

Nice pix! – that’s the exact camera I am still using. :smiley:

Isn’t the C8OF-D the 735 CFM used on the 428CJ ?

Seem to remember that engineering number on my 69…

I just purchased a NOS carb for my 68 GT and the code on it was C8OF-9510-D. I hope one of the experts here can reconfirm.

Wow, an NOS carb! Please post some detailed pictures if you can. I would love to see it.

Yes, C8OF -9510-D is the number I was given as being correct for the S code, 390 4v in my '68 XR7-G.

My mistake was that I thought the date was on the tag attached to the carb, which was missing on the one I purchased and that Kevin Marti reproduces, so my plan was to order a tag with the “correct” date. As a result, the carb I got would be considered too early for my build.

Better too early than too late!

  • Phillip

No it is a 600 CFM carb used only in 1968 on the 390GT.