FORD and HOLLEY 94s

Can anyone tell me the differnce of all the holley

and ford 94s theres so many,are any the same

just differnt models

And wondering if they all have to be the same

to run on a 6x2 or 4X2 intake or if some can be differnt

Would really appreciate this information

 

does Anyone Know?

 

This is pretty general, but up to 1953 ( I think) they were pretty much the same. They did have some different innards depending on the exact model. There were different venturi and throttle plate sizes. Most of the parts swapped to each model, so there was a lot of crossbreeding over the years when they were rebuilt. Starting in 1954 ( I think) the 94's were a bit different in that at the back of the carb there was something called an economizer valve (not to be confused with the valve inside the carb. Even these carbs had a lot of interchangibility with the earlier models.

If you are going to a multiple carb setup, they needn't be all the same. For example, for a 3 x2 setup, the end carbs should match, center one doesn't have to if run on a progressive setup. Same with a 6 x2 setup, the centers can be different is tun progressively.

 

All 8BA, 7RT, EAB, ECG, EBU, etc had a port for venturi vacuum (for distributor). 59, 21-29, 91-99 had no such port. Not a big deal unless you are running a stock flathead, or early y-block, vacuum advance distributor. You should make sure the nozzle bars match; early ones were sort of delta-shaped, later ones were right triangle-shaped.

Later carbs, such as ECG, EBU, and many of the replacement Holley-branded varieties had 1-1.125 butterflies, so one should try to match for size here as well as nozzle bars. They will be marked on the back of the carb body. Most will say 94, for 0.94" venturi. Since these old carbs have been rebuilt a few times, the actual cast iron base venturi may not be the same size as the markings on the carb body.

 

From the mid 30's to around '57 there were a few companies manufacturing the 94's. The CFM on these carbs varied from 135 to 185, Also the venturi's are different diameters in the later years and instead of "94" on the side, you'll find castings of "1" or "1 and 1/16". If you running multiple carbs better start with a matching set.

Terry

 

hit search--somewhere there's a post laying out the versions. I covered the '37-48 varieties, 286 covered the later ones...Most ford til 53 are .94's, falling into 3 basic groups, numerous minor variants, 60 HP ones were .81's, Lincolns were 1"...after flathead period there were several bigger ones, Ford and other and aftermarket, but still close relatives of the 94. It's all covered on here somewhere...