1971 Engine Emission Control Information Labels
Engine emission control information labels are affixed to the radiator-support panel and provide specifics on some tune-up information such as ignition timing & dwell and idle RPM for a given engine/transmission application. By 1971 the emission labels confusion of the 1970 model year had calmed down and all four U.S. plants standardized on their label broadcast codes.
Label Broadcast Code | Engine - Transmission |
AO | 307 - all |
AP | L65 - all |
AQ | L48 - all |
AT | LS3 - all |
AU | LS5 - all |
© ChevelleWorld