Re: Deleting oil filter on a 39 six?

Posted by 39SixSedanMan On 2022/9/14 18:04:57

The tapped holes on the upper left of head began on 40 when the filter became the replaceable insert cartridge style. So a stock 39 Six would not have them; however, to overcome this on my six, I have a bracket that makes use if the two nearby vertical head bolts.
Cartridges available over the counter.

If you happen to find a Packard original cartridge style filter like those in the pictures the others shared, be careful that you don't have one that is intended for the larger engines with hydraulic lifters. That canister has a different bypass pressure to make sure the lifters and rest of the engine weren't starved.

Probably wouldn't hurt your 6, but better safe than sorry. The unit made for the hydraulic lifter engines will have a statement stamped in to the brim of the top cover.

Good Luck.