Identifying Headers

FlyingFalcon said

Hey y'all. Recently on CL I found an ad for a bunch of headers. Real good price on them. I was wondering if it was possible to identify them just by looking at them. He did not list what that were for, and suggested I come out and look at them myself. It's a bit of a haul, so I was wondering if there was an easier way. Thanks y'all

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Yes,
You should be able to distinguish them by looking at them, if you have some
knowledge on different engine makes.
Chevy {Small Block}
Chevy {Big Block > Round Port}
Chevy {Big Block > Rectangular Port}
Mopar {Small Block}
Mopar {Big Block}
Mopar {Hemi}
Ford {Small Block}
Ford {Cleveland}
Ford {390-428}
Pontiac {350-400-455}

These are the most common headers found. Get a Header Catalog, and bring it with
you when you check out the headers.

Or better yet, tell the owner to get a catalog, and have him try to match them up.