NORS 66-67 air cleaner (327) on Ebay

[David L.]

I believe that the NORS air cleaner, GM # 6484498, currently on Ebay was never original equipment on any vehicle.

66 Corvette (327), GM # 6422286 replaced with GM # 6423909 (7/11/66 in AIM and July 1967 as per Chevrolet Parts History).

67 Corvette (327), GM # 6423909 replaced with GM # 6484498 in Jan. 1970.

67 Corvette (327) w/A.I.R., GM # 6423520 replaced with GM # 6484498 in Jan. 1970.

67 Chevelle (327) w/S.H.P., GM # 6423506 replaced with GM # 6484498 in July 1970.

67 Chevelle (327) w/S.H.P. & A.I.R., GM # 6423507 replaced with GM # 6484498 in June 1970.

Dave

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=130548332252

[Bruce T.]

Re: NORS 66-67 air cleaner (327) on Ebay

I believe that the NORS air cleaner, GM # 6484498, currently on Ebay was never original equipment on any vehicle.

66 Corvette (327), GM # 6422286 replaced with GM # 6423909 (7/11/66 in AIM and July 1967 as per Chevrolet Parts History).

67 Corvette (327), GM # 6423909 replaced with GM # 6484498 in Jan. 1970.

67 Corvette (327) w/A.I.R., GM # 6423520 replaced with GM # 6484498 in Jan. 1970.

67 Chevelle (327) w/S.H.P., GM # 6423506 replaced with GM # 6484498 in July 1970.

67 Chevelle (327) w/S.H.P. & A.I.R., GM # 6423507 replaced with GM # 6484498 in June 1970.

Dave

http://cgi.ebay.com/ebaymotors/ws/eB...m=130548332252

It definitely is designed for an A.I.R. application, and it looks to me like it has clearance for a Holley dual feed with center pivot bowls. The Chevelle L78s were exempt from A.I.R. in 1966, but it could possibly fit a 1967 Chevelle L78 with A.I.R. There weren't very many of those made with the EX engine code.

Were the 1966 Corvette L72s exempt from A.I.R. in California?

[David L.]

Re: NORS 66-67 air cleaner (327) on Ebay

The 1966 Corvette w/A.I.R. (exc. H/Per., 427) used air cleaner asm # 6422287. This part number is also shown in the 1966 Corvette AIM (UPC K19, sheet A4). GM # 6422287 was discontinued sometime between June 1979 and Dec. 1981 as per GM Parts History. GM does not list a replacement for 6422287. The base on a 6422287 air cleaner assembly has 2 tubes and a stud.

[Bruce T.]

Re: NORS 66-67 air cleaner (327) on Ebay

The 1966 Corvette w/A.I.R. (exc. H/Per., 427) used air cleaner asm # 6422287. This part number is also shown in the 1966 Corvette AIM (UPC K19, sheet A4). GM # 6422287 was discontinued sometime between June 1979 and Dec. 1981 as per GM Parts History. GM does not list a replacement for 6422287. The base on a 6422287 air cleaner assembly has 2 tubes and a stud.

Well, I've spent much more time on this than I should have. I haven't found any applications that require three tubes. The part number was assigned in 1969. It appears to be a one size fits all applications. Just block off the tube or tubes that your application doesn't need. Looks like it could be used on small block or big block applications.

[David L.]

Re: NORS 66-67 air cleaner (327) on Ebay

There are no applications that use all 3 tubes. The seller is correct with the word "RARE!!" but is totally WRONG describing it as "This is the real deal and NOS GM". It's strictly a service air cleaner that probably needs to be modified.

[John H.]

Re: NORS 66-67 air cleaner (327) on Ebay

Were the 1966 Corvette L72s exempt from A.I.R. in California?

Bruce -

Yes, they were.