289 trans am dual quad intake manifold and Holley carbs

[rcombs]

Offered for sale is a ford dual quad trans-am intake manifold and Ford holley carburetors. Also included are two carburetor rebuild kits and two Holley carburetor books.

This Ford 289 dual quad intake manifold, C60A 9424.A, was designed for the 1967 SCCA Trans-American Championship. Asking $800.00

The dual quad carburetor set was sold over-the-counter by Ford for use on their 289 engines. The set consists of two holley 465 cfm carburetors; a choked primary, C60A-9510-A, and a non-choked secondary, C60A-9510-B. Both carbs have Ford tags dated the fourth week of March, 1966. Also included are the rebuild kits and Holley carb books. Asking $1,000. I have more pictures in my gallery.You cannot view this attachment.

[TA Coupe]

That is a great deal. I'm tempted to buy it, but I already have a complete setup with linkage and air cleaner. And I also have the other style of 2x4 intake. I also run one on my Mustang, and as you can see in the picture the linkage is direct, as it should be. Not a sliding type linkage that some people use. One picture shows the transam intake next my Shelby 2x4 intake also and another picture shows the over-the-counter 2x4 intake.

      Roy

[JohnSlack]

Roy,
Since I am just finishing up an engine with this set up on it for someone else, I'm tempted to buy it. Yes the linkage for T/A would not have the slotted secondary and would be 1:1 between the carburetors. NOT between the primary and secondary sides of the carburetor. But then again these carbs are vacuum secondary units.

I'm modifying the actual carburetor shaft linkage to give a predictable progressive arrangement copied from my SK carburetors using the shafts from a 660 center squirter type arrangement.

I am so excited for this build, I'm considering doing one for myself. This intake seems to be a later unit as the temperature sensor is more in the middle whereas the early unit I used is in the un-machined location on this intake. Either way you me someone else this is a very nice part


John

[JohnSlack]

Another important part to have;

The lifting plate

[msper]

I am interested in in the setup.....I just sent you a PM.....Thanks!

[shelbydoug]

Roy,
Since I am just finishing up an engine with this set up on it for someone else, I'm tempted to buy it. Yes the linkage for T/A would not have the slotted secondary and would be 1:1 between the carburetors. NOT between the primary and secondary sides of the carburetor. But then again these carbs are vacuum secondary units.

I'm modifying the actual carburetor shaft linkage to give a predictable progressive arrangement copied from my SK carburetors using the shafts from a 660 center squirter type arrangement.

John

Would those secondary throttle levers be applicable to any engine running that set up or are the opening points decided by what gear the car is in and what the primary throttle position is at that point? In other words "only track applicable"?

I find it difficulty to believe that the 660's with mechanical secondaries would or could be very streetable ALTHOUGH I have found that the '65 427 carbs work very well on this manifold on the street.

Currently I'm running a matched pair of 1850's with the primaries converted to annular and the secondaries to downlegs.


Incidentally, I did run what Randy was calling "the turd" that was port matched and is a very streetable and responsive set up. So no one will ever convince me that a 2x4 Holley on a small block isn't worth the efforts, but then again, you guys are racing with this. I'm just a street/open track guy.

Roy:

That Shelby script intake is a 289 or a B2 intake? Got better pics of it?

[pbf777]

    Just note, that although your "probably" O.K. lifting the engine and its' associated weight from the manifold, it never was the intention by those who engineered it. 

    Scott.

[rcombs]

The items are sold.

Thanks for all the interest

[pbf777]

     If I may ask:  What were the "List" numbers & "date codes" on the carburetors?

     Scott

[sbowers]

If deal falls thru I would buy! Thanks, Scott

[JohnSlack]

Roy,
Since I am just finishing up an engine with this set up on it for someone else, I'm tempted to buy it. Yes the linkage for T/A would not have the slotted secondary and would be 1:1 between the carburetors. NOT between the primary and secondary sides of the carburetor. But then again these carbs are vacuum secondary units.

I'm modifying the actual carburetor shaft linkage to give a predictable progressive arrangement copied from my SK carburetors using the shafts from a 660 center squirter type arrangement.

John

Would those secondary throttle levers be applicable to any engine running that set up or are the opening points decided by what gear the car is in and what the primary throttle position is at that point? In other words "only track applicable"?

I find it difficulty to believe that the 660's with mechanical secondaries would or could be very streetable ALTHOUGH I have found that the '65 427 carbs work very well on this manifold on the street.

Currently I'm running a matched pair of 1850's with the primaries converted to annular and the secondaries to downlegs.


Incidentally, I did run what Randy was calling "the turd" that was port matched and is a very streetable and responsive set up. So no one will ever convince me that a 2x4 Holley on a small block isn't worth the efforts, but then again, you guys are racing with this. I'm just a street/open track guy.

Roy:

That Shelby script intake is a 289 or a B2 intake? Got better pics of it?

ShelbyDoug,
Those are not 660 center squirter carburetors, they are 450 CFM mechanical secondary carburetors, that I removed the link style throttle linkage from and installed a set of the 4224 660 linkage with the "cam" on the primary shaft side modified to allow the primary and secondary shafts to be progressive in nature. By changing the shape of the cam you can control the opening points of the secondaries and the opening rate as well. They are not 1:1.


John

[Drew Pojedinec]

If I may ask:  What were the "List" numbers & "date codes" on the carburetors?

     Scott

I have seen 20 sets of these originals. All of the original 3360/3361 have a 634 date code. At least all the ones I've seen.

Shelby is later seen selling 1848s on the intake.
I can surmise there was one distinct casting, when they ran out they substituted fairly close generics. 

[pbf777]

. . . . . they are 450 CFM mechanical secondary carburetors,

    Hey John,

    Are those "450's" the one's 'without' the accelerator pump system on the secondaries? 

    If so, in my experience, just toss 'em now and save yourself some grief!    They seem to generally work "O.K." if the package is way under-carbureted providing good draw, this for the transitional throttle engaging the mechanical secondaries and to have the "mains" function reasonably in the low to mid range, but then if so, it's going to run out of breath on the top end!  So in other words: they just "suck"!   

    In comparison, if wishing for a small C.F.M. Holley, in this case a pair of 'em, I've always done better with the 390 C.F.M. "NASCAR" unit; of which for esthetics reasoning, in order to present an "in-period" presentation, this would be an old model, the "0-6895".  But if rounding up "old shyte" there also the R7411 @ 370 C.F.M. and the R7410 @ 340 C.F.M., and although the C.F.M. rating assignments varied the throttle bore sizes didn't, so . . . . .?   

    Of course, the new H.P. "stuff", here the 0-80507, would probably be better and easier to come by, if you just don't mind the modern look.  And then, Quick Fuel does have a 450 C.F.M. "double-pumper"! 

    But in the end, this discussion is actually perhaps moot, as how do you put a 4150 series carb. on that intake?  So maybe, you'll just figure out how to rework the main bodies for an accelerator pump system; c'mon it can't be that hard, . . . . . right?     

    Scott.

       
   

[TA Coupe]

Roy:

That Shelby script intake is a 289 or a B2 intake? Got better pics of it?

Doug, it is a Boss 302 one. Heres a few pictures. Far right Is the shelby intake.Then next to that is a Boss 302 2x4 for regular Holleys? And then the dual dominator and then an Nos Transam intake and then over the counter 2x4 intake for a 289.

     Roy

[shelbydoug]

Roy,
Since I am just finishing up an engine with this set up on it for someone else, I'm tempted to buy it. Yes the linkage for T/A would not have the slotted secondary and would be 1:1 between the carburetors. NOT between the primary and secondary sides of the carburetor. But then again these carbs are vacuum secondary units.

I'm modifying the actual carburetor shaft linkage to give a predictable progressive arrangement copied from my SK carburetors using the shafts from a 660 center squirter type arrangement.

John

Would those secondary throttle levers be applicable to any engine running that set up or are the opening points decided by what gear the car is in and what the primary throttle position is at that point? In other words "only track applicable"?

I find it difficulty to believe that the 660's with mechanical secondaries would or could be very streetable ALTHOUGH I have found that the '65 427 carbs work very well on this manifold on the street.

Currently I'm running a matched pair of 1850's with the primaries converted to annular and the secondaries to downlegs.


Incidentally, I did run what Randy was calling "the turd" that was port matched and is a very streetable and responsive set up. So no one will ever convince me that a 2x4 Holley on a small block isn't worth the efforts, but then again, you guys are racing with this. I'm just a street/open track guy.

Roy:

That Shelby script intake is a 289 or a B2 intake? Got better pics of it?

ShelbyDoug,
Those are not 660 center squirter carburetors, they are 450 CFM mechanical secondary carburetors, that I removed the link style throttle linkage from and installed a set of the 4224 660 linkage with the "cam" on the primary shaft side modified to allow the primary and secondary shafts to be progressive in nature. By changing the shape of the cam you can control the opening points of the secondaries and the opening rate as well. They are not 1:1.


John

Those look like the secondary throttle levers that Randy showed me for the 660's. So I presumed that is what they were?

Running those for me would be entirely too complicated. I'll stay with what I have and for the most part understand but thanks for posting. The entire set up and variations are still fascinating to me.

It is going to take some time for me to loose interest and stop talking about them.