I think it will fit a 331, 365, 390 Cadillac engine. I think it will fit 1954 to 1962 Cadillacs.

I was told by the guy I bought it from, that he tried on a Allard.

I use to do a lot of Cadillacs, I wanted to put it on my 1954 Eldorado

Look on the Vintage Edelbrock manifold section on the info page , it delineates these parts.

Please research this item yourself, I am going by what I learned 30 years ago on this item.

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