[Route-66]

Originally Posted by ratty69

Yes it is. Looks like a pre-68 block that someone converted to a spin-on filter using one of these adapters.

http://www.jegs.com/i/Trans-Dapt/969/1024/10002/-1

If using a ford filter bugs you, adapters also exist that use the Chevy filter.

Thanks ratty, that had me a bit concerned.