Spin-on Oil Filter for a 292 Y-block

[dmsfrr]

Originally Posted by tsanborn

Thank you ALL! For the record, the WIX filter that the crack team at O'Reilly first gave (51522XP) has a different sized threaded spin-on shaft than the one Paul recommended (51515). Got the right one and all good. So for the record, there appear to be at least two different sized shafts on these things. Thanks again for everyone's input!

There should only be one correct size threaded fitting, the one Ford started using in '57.
Since the parts store initially sold you a filter with a different part number that didn't fit I'll bet that filter was for a different engine/application. It was a mistake by the person behind the sales counter.
Especially since a filter with a correct part number fits.
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