Modifying for a BIGGER oil filter...

For those people who use other brands.

stock size= Napa Gold 1085 oversize= 1515
Wix 51085 51515
Purolator L14670 L300001
K&N HP-2004 HP-3001
 
Holy old thread resurrection!!!

Go to the bottom of the page: http://www.yuccaman.com/jeep/filter.html - I probably need to hit it again to update part numbers though.

For the '91 owner griping that the thread sizes were wrong; 91 was a transition year for the HO motor. You could end up with the metric filter with 20x1.50mm threads (Fram PH3985, Wix 51626, AC-Delco PF9) on the vertical mount, or get the horizontal mount with 3/4-16 threads (PH8A, 51515, PF2, etc).

Jim www.yuccaman.com
 
Boatwrench--not too long ago(4-6mo) someone posted that the K&Ns have the same internals/are made by the same mfgs as the Mobil 1s.
 
Boatwrench--not too long ago(4-6mo) someone posted that the K&Ns have the same internals/are made by the same mfgs as the Mobil 1s.
Thanks.

Last night when I searched (really) using "Mobil-1" and "Fram" as criteria I got two possibilities, This ancient thread under "Fram" search and using "Mobil-1" this thread:http://www.naxja.org/forum/showthread.php?t=967488&highlight=mobil-1

I'll search again for the Mobil-1/K&N comparsion you mention. I did find a filter comparsion thread on a motorcycle site that showed Purolater had better filtration than K&N, both surface area & micron size.
 
I use a PH8A with no problem. I throw away the filter about every 1000 miles, so I don't mind using a Fram.
 
Bigger than the 'PH8A' size is the Napa Gold (my preference) part number FIL1773. It's a quart or so larger than stock, original application being a fullsize Ford of sorts. On the 91+ HO engines with the horizontal mount you can get this filter on with plenty of room. Have been running this one for almost 5 years now. No issues. I haven't crossed it with any other brands except K&N (they didn't have one), mostly because I prefer the Napa ones. ;)

EDIT for specs:

Stock size HO filter (Napa Gold FIL1085):
Height (Inches): 3.79''
Height (mm): 96.27mm
O.D. (Inches): 3.66''
O.D. (mm): 92.96mm
Thread Size (inches): 3/4-16

Ford filter (Napa Gold FIL1773):
Height (Inches): 6.982''
Height (mm): 177.34mm
O.D. (Inches): 3.663''
O.D. (mm): 93.04mm
Thread Size (inches): 3/4-16
Time to raise the dead
original.aspx
:guitar:
I found the FIL 1773 is a paper media
FIL 1515 filter is a Cellulose media
OR...
NFI 91085 "stock size" "NASCAR select" with Synthetic/cellulose and "spin" design
Or the larger
NFI 91515 for the up-sized NASCAR filter.
 
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