1967 327 oil filter adapter

[John Brown]

K157 AC or 24061 Wix is what is needed on 67 and earlier blocks. Using the adapter numbers listed above on a 67 block is asking for grief.... lots of grief.

[John Brown]

The K157 uses the same square cut O-ring as a PF141 filter uses. If your friend isn't using that gasket.... shake my head.

[BLACKLS5]

OK, so a no-go on the later adapter. Is there a paper gasket between the block and the bypass? I show a GM gasket #5573980. When I google it some show a flat paper gasket and some show a square oil filter type gasket. He just bought the car and is trying to sort a few things out and I'm not familiar with the older blocks. The numbers you listed are to eliminate the original bypass adapter? Sorry for the dumb questions.

[John Brown]

The K157 AC had you put the bypass valve under the new casting. Never had the Wix one, but the pictures of it look nearly the same. I never knew they had a paper gasket under the bypass valve when I worked in gas station changing oil. Mostly we never removed the bypass piece. We had a K-D tool made especially for digging the old square cut o-ring out. There were a few times when the previous filter change guy didn't remove the old gasket and we had to remove two (or more) of them.