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I recently aquired a early Chevrolet dual duad setup. The guy I got it from received in in payment of a debt decades ago and said it had been sitting for a long time before he got it. After making a post at CorvetteForumDotCom, the friendly users let me know that although the intake, carbs, and air cleanerwere indeed original GM 2x4 pieces they were mismatched. The intake was from a early 56-only application and the carbs and air cleaner were 57-up dual quad. After learning this I decided to break the system into pieces so the parts could find their way back to the cars they belong on.
This sale is for a factory GM dual 4 barrel intake manifold for a Small Block Chevy engine. The casting number is 3728725. From what I understand, this intake is original equipment for early 1956 dual quad Corvettes. Talk about a rare and desirable piece. It will also fit other SBC engines through 1986.
This intake is in excellent original condition. It does not appear to have ever been painted, blasted, etc. All threads are in great shape and there is no porting or corrosion. The only flaws I see on this intake are ne water neck thread appears to be 7/16 thread instead of 3/8 and there is a possible repair on the right rear mounting ear. The rear mounting ear could also be a casting flaw. I was going to contour this area to make it unnoticable but did not want to remove a factory "flaw". The heat shield on the underside is still intact and in excellent shape. Under the shield there are the numbers "2-14" with a winter's snowflake on each side. I have seen many later dual quad intakes in my time but these early 4 hole plenum units are very scarce. They really don't get any nicer than this intake.
This is your chance to get an excellent original dual quad intake manifold for your special car at ! That's right, the high buyer at sale end will be the proud new owner of this rare piece. If you want/need this intake this is your chance. DON'T MISS OUT!
Check out my other sale for more rare and hard to find muscle car parts including the other parts that came off this dual quad manifold.
On Jun-17-11 at 19:05:06 PDT, seller added the following information:
To those who were watching the dual quad carbs and other parts I had listed that were ended, I am sorry for the inconvinience. ended a bunch of my sales. They said I was in violation of the "search and browse manipulation policy". This was because I put year models in the other part number section of the interchange section. It is rediculous and I am very upset about it. I try to follow the rules and these things still happen. That said, I do plan to relist the carbs and tachometers but will be getting married next week and will not be posting sales for a month. Rest assured, I never end sales early to sell outside of .