Oil Filter L98
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From: Plantation Florida USAF(Retired) 1966-1990
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St. Jude Donor '05 thru '26
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Oil Filter L98
I have found out that oil filter number has changed for C4 L98 engine, and rest of you. We used a AC Delco PF25 oil filter, and now they no longer make that number. The replacement is now PF454. To me it looks a little smaller that PF25. Will find out next month when I change the oil. 
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From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
St. Jude Donor '10
I think it is a little smaller. I read somewhere that the newer AC filters are not made in the U.S.A anymore. They are made in Korea or somewhere. I started using Purolator filters in my vehicles, the Pure one models only.
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From: Lacey WA RVN 68-69
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Next to impossible to find the PF25 or aftermarket equal anymore. The PF454 looks waaay too small for me so I use a PF 1218 which is a much larger filter. It fits easily in the space and doesn't hang below the oil pan at all . The 1218 holds almost a full quart 
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From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
Originally Posted by AZC4Guy
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From: Plantation Florida USAF(Retired) 1966-1990
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Originally Posted by Morley
And is the replacement for the PF 35.
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Drifting
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From: GA
Originally Posted by 1bdvet
Please be careful, I found when I use that filter on 1989 L98 when I sut-off the car I smelled something burning, and it was the filter. It's a little longer, and close enough to the exhaust pipe tp get super hot. I open the hood, and you can see the filter smoking. When I replaced with 25, I had no more problems, so please check to see that it doesn't cause you a problem.
Drifting
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From: GA
Originally Posted by skeet
Morley- You are kidding right? There was no factory oil heater.
I'm sure anyone that has been under their car and fooled with the oil filter knows what I'm talking about.
Race Director
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Originally Posted by Morley
You have the factory "oil heater", yes? If you remove that there shouldn't be any clearance problems
Last edited by Joe C; Sep 1, 2005 at 06:29 AM.
Racer
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From: Corpus Christi TX
What part number would I be looking at for the K&N and Purolator that fit the L98? I've been rather stumped trying to find those PF25's, and I like the hex nut idea the K&N's have.
And thanks for the FYI on the other AC Delco filters.
And thanks for the FYI on the other AC Delco filters.
Melting Slicks
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From: Oklahoma City Oklahoma
Originally Posted by kenv
I think it is a little smaller. I read somewhere that the newer AC filters are not made in the U.S.A anymore. They are made in Korea or somewhere. I started using Purolator filters in my vehicles, the Pure one models only.
Drifting
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From: GA
Originally Posted by Joe C
i use the pf35 on my '85 without problems - it also has the oil cooler (part of the z51 package) - its not an oil heater.
