4 barrel oil bath air cleaner

[70c10-08]

I've got what's left of a 1969 St. Louis built C/20 that came with a four-speed manual and ls9 350 and was equipped with a two barrel oil bath air cleaner in Nebraska. So I know they had oil bath air cleaners at least until 69.

[MJN]

Originally Posted by JQ-72

I just pulled in a 70 3/4 ton truck with 350 and factory oil bath air cleaner. I didn’t know they were still used up to 1970 year model. Anyone know the last year for oil bath in light duty trucks?

Looks like oil bath air cleaners were available for 1971 but not in '72 at least for light duty trucks. Here are a couple photos from my '71-72 parts catalog showing only paper or paper poly for '72 and a snapshot from the 1971 info packet. I couldn't find detail about 2 or 4bbl but looks like for a C/K20 the oil bath was only available on the 350 and the only 350 available was the LS9 with a 4bbl carb for those models.