Looking for HEAVIER DUTY ACDelco Air filter for your A348C?

[69hurstolds]

We all know a plethora of G-bodies used the infamous A348C air cleaner from ACDelco. Paper element type.

But did you also know, if you have one of these and would prefer a bit more filtration you could use A477C instead? GM p/n 88915348. Lists for $17.30 from GM.

It's basically a 348C with a foam prefilter. It's a bit more restrictive, but if you drive around in dustier conditions, it may prolong the life. Need to stay after it cleaning the foam more often, but it's an idea. I used one years ago and it kept the paper element a whole lot cleaner. I quit using them because the 348C was virtually everywhere while the 477 wasn't. But they were around the same price.

Around 9 bucks from rockauto. In case you want one. It's not a K&N, sure, but you can buy a case of 4 of these for around $35. Use the savings and put it in your tank.

And now you know.

 

[airboatgreg]

I don't think AC Delco does it anymore but Wix or NAPA Gold may still put a coating on the paper element. When you pull it out of the box it will have a tan tint and feel oily

 

[565bbchevy]

That looks very restrictive.

 

[DRIVEN]

That looks very restrictive.

They aren't all race cars 😎 .

 

[Turbolq4]

Yes they are!!!

 

[Longroof79]

Is the foam element an overwrap, or is it incorporated in the construction of the filter? If it's an overwrap, at least it could be removed and washed much like a lawnmower filter.

 

[565bbchevy]

They aren't all race cars 😎 .

Yeah I know, some are Pro Street.

 

[69hurstolds]

Is the foam element an overwrap, or is it incorporated in the construction of the filter? If it's an overwrap, at least it could be removed and washed much like a lawnmower filter.

Years ago when I used them they could be had at the local auto parts store. It was one of those places where they just stocked the shelves with air filters and oil filters by brand, and had a whole ACDelco section to itself. I used to buy my A366C air filters there as well. Stupid box always said it fit Pontiac with ram air but never mentioned the Olds ram air applications. Plus they had the little ACDelco card hanger parts with blister packs where you could buy oil fill caps and breathers and such for dirt cheap.

Funny you say lawn mower filter foam. It looks eerily like that. The air filters I used until they stopped carrying them at the store had the foam that was removable. It just stretched around the air filter and had a bit of oil on it IIRC. Periodically I would just take it off, blow it out with some air, and put it back on. The air cleaner filter paper stayed pretty clean. I do not know if the foam is removable any more. It's been several years. I can't help but think they would restrict flow a little, but for a stock car, that wasn't too much of a consideration. It's not like you could make a stock G-body Olds any slower. 🙂

Trust me, this isn't a "performance" filter. But it's just another option for folks with the stock air cleaner housings that use the A348C filter.

 

[pontiacgp]

They aren't all race cars 😎 .

they use them on dirt track cars, we never used them on our asphalt circle track cars. We have cleaned the rads from alot of rubber but with a cowl induction the carb is protected from that

 

[Longroof79]

They kind of remind me of the foam overwraps that I used on my old Porsche with dual Solex carbs. They were made by Filtron. Filtron filters were used also used on race and off road vehicles. Of course, this was before K&N filters became the performance filter of choice.