69 Cowl Air Cleaners

[DEUCE]

Hello, can anyone tell me the transition date from flat bottom to ribbed bottom air cleaners?

Thanks Mike

[William]

Not certain there was one. Flat bottom still used in production as late as October '69.

[Big Block Bill]

I owned Dusk Blue SS-350 Camaro VIN #124379N710456 built 11A and it had a Flat Bottom Cowl Air Cleaner assembly. FWIW and it was original to the car to the best of my knowledge.
Bill

[NorCam]

I had another late car built 10E in the first week of November 69 and it had a flat bottom breather as well.