I have seen a lot of different Hemi air cleaner on cars and reproduction model info. I just wanted to make sure that what I post below is correct and makes sense.
Parts book I have looked at seem to be a little incomplete in this area. This is restricted to Street Hemi and B bodies. Avoiding E bodies for now, but if someone wants to add the correct E body info that is fine.
So to summarize what I think is correct:
The 66 to 69 cars had one set of Valve covers with breather to air cleaner on driver side. PCV valve on passenger side.
70 to 71 cars had different valve covers and now breather on passenger side and the new smaller PCV valve on driver side.
So 66-68 hemi cars all had the chrome round air cleaner (decals different).
In 69 all non-fresh air cars still had chrome round air cleaner. Chargers, Charger 500 and Daytona were the non-fresh air cars.
But for fresh air cars like Road Runner/GTX and Super Bee/RT they got the oval air cleaner and the base would have the breather tube exit towards driver side. Just like the 383/440 air cleaners for fresh air. For these cars when ordering the Hemi option, the Fresh Air option is mandatory.
So the only 69 cars that should have chrome air cleaner are Chargers and Daytonas.
1970 new valve covers and the same option data above applies. So all the Fresh Air cars got oval air cleaner but now the breather tube exited towards passenger side, and again similar to the 383/440 cars.
Again Chargers are not fresh air cars but seems to be some conflicting info. Some show chargers getting Chrome round (if so did they get 69 valve covers?). Was this an early late thing? Other show oval cleaner like fresh air cars.
Superbird was also not fresh air and got oval. These 1970 oval on non-fresh air would have a baffle plate on the front of the base.
In 1971 new B body models and now the Fresh air is available (mandatory) on all models that can get the hemi. Oval with same vent tube to passenger side as 70.
