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.