Re: Air Cleaner Base 1970 LT-1
Ron,
Enclosed is a sketch of what I believe is a 6422188 base (bottom side) with the tube angled at 90 degrees (used on the 6423907 air cleaner assembly) shown on the left side. On the right side of the sketch I always thought was the base used on the 6423272 air cleaner assembly with the tube angled at 45 degrees.
The 6423907 and 6423272 air cleaner assemblies were both used on 1968-1969 Z28's.
6423272 changed on 11/27/67 to 6423907 changed on 10/30/68 back to 6423272.
The 6423907 A/C asm. was used with the 3942518 rubber hose and the 6423272 A/C asm. was used with the 3932336 rubber hose. Both A/C assemblies use the same connector, GM # 3923260, in the valve cover. Since the rubber hoses are different I would think that the tube location on the bases would also be different.
In March 1971 a 6423907 A/C asm. listed for $34.70 while a 6423272 A/C asm. listed for $36.35. I wonder why one was more expensive if they were basically the same?
Are you saying that your NOS 6423272 A/C asm. has a base that looks like the one on the left side in my sketch?
Dave
Ron,
Enclosed is a sketch of what I believe is a 6422188 base (bottom side) with the tube angled at 90 degrees (used on the 6423907 air cleaner assembly) shown on the left side. On the right side of the sketch I always thought was the base used on the 6423272 air cleaner assembly with the tube angled at 45 degrees.
The 6423907 and 6423272 air cleaner assemblies were both used on 1968-1969 Z28's.
6423272 changed on 11/27/67 to 6423907 changed on 10/30/68 back to 6423272.
The 6423907 A/C asm. was used with the 3942518 rubber hose and the 6423272 A/C asm. was used with the 3932336 rubber hose. Both A/C assemblies use the same connector, GM # 3923260, in the valve cover. Since the rubber hoses are different I would think that the tube location on the bases would also be different.
In March 1971 a 6423907 A/C asm. listed for $34.70 while a 6423272 A/C asm. listed for $36.35. I wonder why one was more expensive if they were basically the same?
Are you saying that your NOS 6423272 A/C asm. has a base that looks like the one on the left side in my sketch?
Dave
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