1969-72 4 barrel air cleaner differences?
One obvious difference is that original 1968 and 1969 units were painted orange, versus black on 1970-72 units. 1968s have a unique snorkel and choke hot air tube setup as well.
I'll throw out info on the oddball in the bunch: The code NH dual snorkel, dual ventilation unit was used on later-build 1971 442s without OAI, and it was also used on all 1972 455/M20 (V Code) cars without OAI. 1972 TH400 (U Code) 455s used a single snorkel unit.

Terry
I'll throw out info on the oddball in the bunch: The code NH dual snorkel, dual ventilation unit was used on later-build 1971 442s without OAI, and it was also used on all 1972 455/M20 (V Code) cars without OAI. 1972 TH400 (U Code) 455s used a single snorkel unit.

Terry
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69CutlassAlex
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Dec 2, 2011 08:01 AM



