Buick cast iron dual quad intake

I have a cast iron dual quad intake that I’ve been led to believe is a Buick intake for a 455. It came from a deceased Buick engineer who worked on the ‘72 GSX project.

The intake has holes drilled into each tunnel just before the heads. The holes were used for measuring airflow. It was an experimental item and never made it to production. This was verified by a retired Buick engineer who worked on these engines.

I have found a picture of a complete Buick dual quad setup that never made production. I will include that picture as well.

I am restoring a ‘70 GSX and thought about using it, but decided not to do that. Instead, I am looking to see what kind of interest there is in this item.

I know three other intakes exist. This would be the fourth that I am aware of.

I will sell this intake for $7500. It is a rare historical experimental piece that was used in Buick’s R & D department. This intake is located in the Saginaw, MI area.

The red intake with carbs is for reference, this listing is just for the bare intake.

 

That's pretty sweet. Not in line, but GLWS

 

I'd pay 1000 for it

 

Did they fill the holes in on the red one( one “of the 3”?) so it could actually be used or is it for display only also?
Kind of wondering why they were even considering this on a low compression “72 GSX project”.
Were you able to find out from the retired Buick engineer what cfm carbs they expected it to use if ever green lighted?
I saw you mentioned that you were led to believe it was for a 455. Have you ever tried to confirm that?
Sorry for all the questions just trying to figure out the year application,type carbs, linkage arrangement and since being cast if all those holes could be successfully filled without ruining the intake and possibly used if the engineer said that it was tested & ready for a production 455.

 

Those are for nitrous BA and expensive

 

The retired engineer did say it was indeed an experimental piece from the mid ‘60s and that it was used on the 430 engine. He even provided a picture showing one. I can get the pic if you want.

 

I am not a player on it (just trying to help) but having owned an experimental 1970-455 R&D part out of Buick & authenticated by Dennis Manner (via a stamped R&D work order number) the more information you can provide whether by picture, or for the amount being sought documented R&D numbers you may get a better feel for any potential market imho.

 

very cool. dual plane

 

I was thinking those hole would also be perfect for direct port nozzles.........kinda funny that only 1 of those carb in the top picture has the choke linkage hooked up.........

 

Yes, drill & tap and plug them or a Nitrous fogger system would be pretty darn cool looking : )

Interesting piece, wish it had the experimental “X” cast into it like my 4-bolt prototype block did.
Look it over very carefully for small job numbers stamped into it.

 

Hi,

Not inline, nice find.

Have you talked to Dennis Manner, as I know he had a lot to do with the engine development And might be able to shed more insight on it. I talked to him about a few parts i have in the past, he was very informative.

Surprised it is cast iron as I got a few X-castings for nailheads a while ago and all were Aluminum and had a "X" in the casting number. Maybe this was farther along into the production process. Would have been a neat option on GS.

Best of luck with the sale, would be neat to see it on a running car.

Regards,

 

With alot of tuning a dual qjet would feel amazing on the street

 

I did contact Dennis through his son-in-law Greg. Dennis is the person who said the intake was from the mid 60’s and before he got involved. He said the stamp 1-10280 designated it as an experimental piece.

 

There ya go! Excellent information! Dennis is a wealth of great information,glad he was able to confirm that as experimental.

 

Photo from the last one that sold on Ebay for about $ 3000. Back carb is # 7027240 (1967 side outlet) front is # 7028248

 

That's the same intake from the OP pics uptop^^ just a top view shot of it.

 

I was right no choke.

 

That linkage on the choke coil is hilarious.

 

I have both of those carbs...kinda. One's on the engine (702748), the other is sitting in my upstairs hallway (7027240) with the fuel line. There's a couple of 800CFMs up there too in various states of assembly...