1958 Dodge

In 58, all Custom Royals got the new B motor,
As well as the late year Regal Lancer, iirc.

Looks just like a 383, but it's a 350.
The 350s I've seen, the valve covers look similar to the 361, but somehow different.

Dodge poly motors were essentially each brand's hemi motors with poly heads.
So the issue is which 4 barrel manifold fits a 58 325 poly?
Obviously, a 58 poly 4 barrel, but which hemi?
My understanding is there is a standard block, 331 & 354, and a raised block, 392, and I've heard other terms, early hemi, baby hemi, and lower displacements as well.

If anyone knows casting numbers that would help, I've searched the forums and it is not clear to me.

Here is what I believe to be a 325 intake and carb, or at least one that will fit.

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