Replies:
From Chris:
There are basically
only two filters for most Chrysler products from the 60s, 70s and 80s.
The later models (typically 72-up due to smog pumps and other things in
the way) use the short filter. The earlier models use the long filter.
In theory all could use the short filter because the fitment end is
identical, but why forego the extra filtering area if you have the room.
For the long filter
for your '68, the Fram model number is PH8A, and the Purolator number
is 30001.
From Dick:
NAPA Premium #1515
is the one to use.
From Frank:
You could also use
Mopar #5281090, I use this on a 1972 440 engine have had no problems at
all. Its not as long as the Napa 1515 or Mopars long one, but when your
changing it every 3k, it should be just fine.
From Roger:
For the most part
it doesn't matter the brand name of an oil filter as long as it is a
good quality. Fram, Wix, Pulator, Napa, and Motorcraft are all good
filters. The only ones that I have seen fail are not because of the
filter. It is usually caused by oil pressure relief valves sticking.
This too is very rare but does happen. Regular oil changes and quality
oil are the main thing. Any of the above filters as well as others will
do a more than adequate job.
From Carl:
If we're talking
the 440s so can I add that the K&N filter is of extremely good
quality (I cut my old ones up) and it appears a bit longer than the
regular PH8As and stuff too so not only better construction but more
filter area too. $10 and I think the part number is HP-3001 but verify
it first.
From Pete:
The K&N will
probably work just fine but it's overpriced.
I stay away from
Fram on principle, but will use the PH8A in a pinch.
My number 1
favorite is the Motorcraft FL1A and I've used them for decades. They
fit a lot of FoMoCo products (like my '61 Continental) AND the big
block Mopar engines, too.
I currently use the
AC-Delco PF2 because, after Roger Penske thumbed his nose at K-Mart,
they blew out all their AC-Delco stock. I bought a shopping cart full
of AC-Delco filters (for various cars) @ $2 each!
As someone has
already said, 60s/70s era Mopars used either the long or short filter.
The threads are the same so the only real constraint is the space
available.