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View Full Version : Air cleaner base ID

BLACKLS5
02-22-2023, 11:39 PM
Can anyone tell me what this air cleaner base is from. Vent tube starts at 1" and tapers down to 3/4". Tube exits about the 10-11 o'clock position. I was going to eliminate the tube to make it work on something but if that's a bad idea I can try and find another base. Thanks
Big Block Bill
02-23-2023, 02:40 AM
I believe this is off a 1969 Corvette 427 / 390 car.

Bill
McCune
02-23-2023, 03:41 AM
Is it for sale? I am interested Don't hack it up!
Ralph Spears
02-23-2023, 07:33 AM
What is it worth ?
Igosplut
02-23-2023, 11:17 AM
I have a few also, never could nail down what they were for.

https://i.postimg.cc/dVrWLvgK/IMG-0613.jpg (https://postimages.org/)

https://i.postimg.cc/BvCMBpqY/IMG-0614.jpg (https://postimages.org/)
X66 714
02-23-2023, 11:28 AM
Would that base have been used with a black lid?....Thanks, Joe
BLACKLS5
02-23-2023, 12:31 PM
I needed a base and both needed modified to work. I think the other base I have is from a repop cowl induction air cleaner. I guess I won't use this one. I'm not sure what lid what have been used with it.
McCune
02-23-2023, 01:10 PM
That base is the last open element air filter Chevy used. It fits a one year only 1973 Z28. The odd tube angle is for clearance of the EGR valve.
John Brown
02-23-2023, 03:15 PM
The fact that it tapers down to a 3/4 inch tube makes a big difference. Most all others have a full one inch tube.
Big Block Bill
02-23-2023, 08:08 PM
That base is the last open element air filter Chevy used. It fits a one year only 1973 Z28. The odd tube angle is for clearance of the EGR valve.

Would a 1973 open element Chevrolet base have a flat bottom? After 1970 most I saw had a ridge going around the outside.

Bill
McCune
02-23-2023, 08:26 PM
It has a ridge to retain the element.
Big Block Bill
02-24-2023, 01:02 AM
I'm talking about the bottom surface looking up. Prior to 1970 the surface was flat, all over the counter bases after that had a "Rib" around the base indicating it was a later design. the 1966 427/425 original air cleaner I had was a base that was flat with no rib going around the diameter, they all had a ridge to keep the air filter element (A212CW) in place. The same goes for the Cowl Induction Bases for 1969 going forward. but Hey, that's what I remember having had many over the years and sold both types.

Bill
McCune
02-24-2023, 02:41 AM
No rib on the 73 base.
BLACKLS5
02-24-2023, 03:50 PM
Thank you McCune for identifying the base.