is there any interchange for the GM A77C FI air filter other than K&N E-1935

[Ian G.]

I saw some other posts about this but never a solid answer: Is there any interchange for the GM A77C FI air filter other than K&N E-1935? It's well known the only currently available air filter is the K&N, but what about vintage air filters? I decided to hunt around and looked in eBay posts for FRAM, Purolator and Wix catalogs from the 60s and 70s. I found corvette entries for FRAM and Purolator that both indicate there's no interchange. I could not find one for Wix yet.

It makes sense to me given there were maybe 1,000-2,000 corvette fuelies built each year, and the '57 Chevy 150s and '57/'58 Pontiac Bonnevilles didn't use the same air filter (and low numbers there too). So not a lot of market if they were only for corvettes. Does anyone around back then know if there was any other filter available than the AC Delco A77C?

[Joe L.]

I saw some other posts about this but never a solid answer: Is there any interchange for the GM A77C FI air filter other than K&N E-1935? It's well known the only currently available air filter is the K&N, but what about vintage air filters? I decided to hunt around and looked in eBay posts for FRAM, Purolator and Wix catalogs from the 60s and 70s. I found corvette entries for FRAM and Purolator that both indicate there's no interchange. I could not find one for Wix yet.

It makes sense to me given there were maybe 1,000-2,000 corvette fuelies built each year, and the '57 Chevy 150s and '57/'58 Pontiac Bonnevilles didn't use the same air filter (and low numbers there too). So not a lot of market if they were only for corvettes. Does anyone around back then know if there was any other filter available than the AC Delco A77C?

Ian-----


The AC A77C, aka GM 1553911, air filter element was discontinued without supercession in December, 1971. I know of no past aftermarket equivalents ever available but, I suppose, it's possible.