Help Identifying Weber Carbs

**69L78** · #1 12-07-2023, 08:16 AM

Can anyone identify this Weber carb setup, I was told the # 3742580 is a GM #?

Lee Stewart · #2 12-09-2023, 08:16 PM

They look like pre 1992 carbs as Webber moved their manufacturing from Italy to Spain in 1992.

**Big Block Bill** · #3 12-09-2023, 08:24 PM

Quote:

Originally Posted by 69L78

Can anyone identify this Weber carb setup, I was told the # 3742580 is a GM #?

They look to be from the Can Am period of Aluminum Big Block Chevrolet Racing days. Bill

**enio45** · #4 12-10-2023, 07:46 PM

contact mike pierce weber carb restorations......he is everything about weber and been around for quite a while

831-975-5365 California

**69L78** · #5 12-11-2023, 05:08 AM

Thanks for all the help, I will let you know what I find out.

**napa68** · #6 12-11-2023, 11:52 AM

Does it appear to be a BBC manifold Jeff? Hard for me to tell from the pics.

**69L78** · #7 12-11-2023, 11:55 AM

Quote:

Originally Posted by napa68

Does it appear to be a BBC manifold Jeff? Hard for me to tell from the pics.

Sorry guys, it is a SB

**iluv69s** · #8 12-13-2023, 11:15 AM

Is that a grand Sport setup? Sure looks like it !! If so, you hit the jackpot! Those cars rarely change hands, but when they do, they sell for millions.

I searched for an intake setup for years after I found a set of heads.( I posted a pic of my heads and an original motor. )

Only other intake I ever saw was a member here that has an NOS intake, but it needed finish machining. Maybe someone can find that thread .

**olredalert** · #9 12-13-2023, 02:16 PM

----When Classic Motors restored GS #1 it was restored with a very special 377 small block and a set of crossram Webers that came right out of the skunkworks at the tech center. This set looks visibly the same. When GS#1 was re-restored more correctly by a guy named Jim Purvis it was done with a big block and 4-barrel. You can see a pic of the car in that livery on the Fram oil filter box (I think), therefore I have no idea where the set of Webers and intake went after that. I was shop manager at Classic during this period and GS#1 was restored off sight so I wasn't real close to what went on with that project. I suppose this set could be that set,,,maybe!....Bill S

**luzl78** · #10 12-13-2023, 02:49 PM

If originally installed on grand sport car that is worth $50,000

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