1972 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.
If you have a build sheet for your Chevelle, the label is coded in
box 91 like this Kansas City assembly plant with the LS5 engine
regardless of transmission type.
Label Broadcast Code | Engine - Transmission |
LC | 307 - all |
LG | L65 - all |
LL | L48 - all |
LT | LS3 - all |
LX | LS5 - all |
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