I have a '57 235.
I've searched and I've yet to find one. I was surprised to find this to be the case with as many '57 6 cylinders that are still out there. I have never been able to get any air filter to fit. Quite a while back I bought an air filter canister and I've cut it. I eventually plan to try to weld it together to accept a paper filter element, but I don't have a shop .... and I don't know how to weld... haha. A relative said he would show me but we haven't had the time yet.
brandon
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