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Send PMWest Bend, WI - USA
Joined: 3/18/2010
Posts: 46
Vette(s): 1985 silver coupe & 1975 red coupe
My Vette has a 350CI crate motor. The info for the motor says it takes a PF25 AC oil filter. The guy at the auto supply store says that number has been discontinued. I found something on line that said AC filter PF454 is the same as the PF25. Does anyone know if this true or not? Thanks much, Darrell
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RedVetteinprogress said: My Vette has a 350CI crate motor. The info for the motor says it takes a PF25 AC oil filter. The guy at the auto supply store says that number has been discontinued. I found something on line that said AC filter PF454 is the same as the PF25. Does anyone know if this true or not? Thanks much, Darrell
Yes it's actually improved with an anti drain-back feature.
corvette440hp
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I believe the Fram Ph-30 will also work for you. I know it works on my 69 427.
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Send PMFrederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
I think most any brand will be fine as long as it meets factory specs. The secret is regular oil and filter changes.
The crate engine, if it's a GM Performance crate engine will of course specify an AC oil filter since it's also GM. Any good cross from another brand will work just as well.
I've seen a number of comparisons where someone buys an assortment of brand oil filters and cuts them open to compare construction. It's amazing the differences between brands and how they're assembled. Some have cardboard inside them, some have rubber bands holding the filter media together, etc. There's no question some are made better, but with a regular oil and filter change schedule, they all do the same thing. If you go with extended oil change intervals, yes, the better filters might make a difference, but essentially, they're do the same thing.
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I like the 454. Simple stuff..I think it's bigger too.
My first parade at Carlisle 2010
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7
All oil filters are not created equal. The filter media and anti-drainback features just to name a couple of things. I saw a report on Fram filters that showed them failing pressure tests. Caveat emptor. 
1973 L-82 4 spd
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The topic of filters will have many opinions. The car currently has a fram PH30 installed from the previous owner. It seems to be working well. I will be changing the oil soon, and was just trying to get an idea of what other owners use.
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K
I spend a few extra scheckles and get the K & N Oil Filter.
Maybe its overkill for my '79 L-48, but I like peace of mind.I've also heard good things about the Napa Gold Oil Filters but I've never bought one.
Let us know what you decide to go with.
Kevin
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All I have to say is...if the engine has a warranty on it, use the proper Delco filter. Or do as you please.
We had a guy come into my buddy's dealership to redeem a oil change gift certificate that was a door prize at a fund raising benefit.
Long story short. The engine blew, the Chevy dealership blamed it on the aftermarket oil filter, went to court, lost case, paid out $4400 for a new engine. This was even after the guy admitted going 5,000 miles over the recommended service interval. <smh>
I used Delco filters on my GM vehicles, and Motorcraft filters on my Ford truck. That way there is no way they can say it was the aftermarket filter at fault if the engine blows up.
We had a guy come into my buddy's dealership to redeem a oil change gift certificate that was a door prize at a fund raising benefit.
Long story short. The engine blew, the Chevy dealership blamed it on the aftermarket oil filter, went to court, lost case, paid out $4400 for a new engine. This was even after the guy admitted going 5,000 miles over the recommended service interval. <smh>
I used Delco filters on my GM vehicles, and Motorcraft filters on my Ford truck. That way there is no way they can say it was the aftermarket filter at fault if the engine blows up.
GEN III 5.7L "LS6" Engine swap
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Born 8/1981
Sequence #3975
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Lifetime Member #26
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
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v
I've been using the K&N oil filters on my 350ci and I prefer them. I like the wrench off feature as it is faster to get the filter off during a change. I have used the AC and the Fram as well. PF-454 is just larger than the PF-25. We went to K&N because my local auto parts stores didn't carry the one's I wanted consistently. So I went on line to order. So I figured if I'm going to go thru the trouble of ordering on line I'd get something that isn't often in the store anyway.
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