conor.davis

iTrader: (20)

First time changing the oil on my 98 TA I picked up a K and N filter for LS1 and it did not screw on, the hole on the filter was too small.
It needed a Fram ph10060. The oil cooler does not have a line running back to radiator (I think thats where it was supposed to go) so something was changed either the "fitting" or the whole oil cooler.

I want to run a K and N or Mobile 1 filter for my car.
Now my question is this. Can i just unscrew the "fitting" (I don't know what its called) that holds the filter to the cooler, or do i need a whole new cooler?
If anyone knew thread sizes that would be awesome. Thanks!

91RS383

The factory oil pan does not have an oil cooler.

The K&N Part number that crosses with the Fram filter you posted is: HP-1017

91RS383

Other cross references:

AC PF48
CHAMPION LAB. PH48
FRAM PH10060
General Motors 89017524
LUBER-FINER PH48
MOBIL1 M1113
NAPA 7060
NAPA 7073
PURO L12222
ROYAL PURPLE 1048
SAAB 729854
STP S10060
SUZUKI 1651078J00
WIX 57060
WIX 57073

1 FMF

iTrader: (1)

it sounds like you got a filter for the newer LS2/3 motors, their oil filter thread is different than for the older LS1 motor, you do not want a PF-48 or hp-1017, that is for the newer LS motors, yours is an LS1.

the cross ref's i have for the LS1 are this,
with the original oem being AC-delco PF44, the part number is now PF46.
the long length filter is PF-61,

mobil M1-107 (short)
mobil M1-206 (long)
napa 1045 (long)
fram ph3506 (short)
fram ph3675 (long)
K&N hp1007 (short)
K&N hp 2006 (long)


the old LS1 filters have a 13/16-16 thread,
the hp-1017 and any filter for the newer LS3 has a 22x1.5mm metric oil filter thread according to K&N, which is why it didn't screw on.


and for the PF46 / PF61 oil filter for the LS1,
the o-ring gasket is 2.625"
the short length filters (PF46) are 4.25" and the long length filters (PF61) are 6.25".

conor.davis

iTrader: (20)

Thats what SHOULD be on my car, but isnt.
The filter that wouldnt fit was K&N hp1007.
I think the HP-1017 is the right one, I just picked one up.

EDIT: K and N HP-1017 fit.

slowpoke96z28

iTrader: (2)

that car most likely had the oil pan replaced for some reason then(chucked a rod recently?). the new oil pans have a newer metric fitting and use the same filter as newer lsx's. you just have to remember from now on when you go to get filters, cause if you ask for a filter for a 98 ls1, you'll be doing this dance all over again. i dont belive you can swap the fitting to the old style.

conor.davis

iTrader: (20)

I'm not sure what happened to it... I just picked it up couple months ago bone stock with 84k on it and not much info from prev owner.
Would be nice to know why it was changed.
I know what filter it takes now, so thats all that really matters I guess.

slowpoke96z28

iTrader: (2)

how long did the previous owner have it? i'd talk to him about why the original oil pan came off and was replaced with the newer design. thats one of those things that occur because something else had to be replaced, and i'd want to know what it was.

conor.davis

iTrader: (20)

I wonder if it was just the 'adapter' that holds the filter to the block that was changed?

number 21 in this exploded diagram

http://rpmspeed.com/images/12558760.gif

Black 99 Bird

iTrader: (31)

Your car did not come with a engine oil cooler from the factory. Does it have one on it now? I think that is what I read in your first post.

slowpoke96z28

iTrader: (2)

yeah, but who and why would someone change just that?