Manifold info please

E

Edd505

New member
I'm looking for a 4V manifold for a 1957 312. I have 3 ECZ-9425-B one with a complete Tea Pot carb. I want to get the Holly bolt pattern and the B is too small. I'm redoing a 1957 Custom 300 with the 312 and by VIN it should be a 4V, it's a 2V right now. What manifold do I need a ECZ-9425-A?

Anyone interested in the B's give me a PM.
 
Photos of the intake manifolds you're asking about could help.

'57 was the first year for the larger bolt pattern 4bbl intake. Their casting number is ECZ-9425-B, first example photo below.
There are 2 basic versions: with and without the crossover hot air tube for the choke.

If the three "B" intake manifolds you have fit the smaller Holley 4000 'teapot' bolt pattern they could more likely be the ECB-9425-B version from '55. Second photo below.
Notice the large part of the casting on the exhaust crossover for the choke thermostat.

An ECZ-9425-A manifold from '56 also has the smaller 'teapot' size bolt pattern. Third photo.
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There is an adapter for the early manifolds, I assume it is still made just don't know where to get it.

Mike
 
I have bought some stuff from Top Street Performance, and I like their stuff. $200 for that looks like a deal.
 
Odd things happened in AU with the Ford line, particularly 57. But I don’t think that odd. The picture is clearly a y block manifold. Ted Eaton’s comment on mentions the lack of B manifolds in passing. I’m sure that’s a typo.

Maybe Mercman knows.
 
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