3/4 ton big block with SMOG?

[DANTIP]

Originally Posted by JQ-72

Just pulled in a 3/4 ton Suburban with 402 and TH400. It is a TLM suffix code engine with SMOG on it. All 3/4 BB trucks I’ve seen have been non-SMOG. Was this a Burb thing or assembly plant thing? It is a Flint built truck. All dates appear to match up with blue sticker on door so I don’t think the engine has been changed out. Any ideas?

The Suburban would be the only 3/4 ton "truck" to get the TLM engine (which includes a smog system). 3/4 ton pickups would not have the TLM engine and would have the foil Emissions label on the passenger side valve cover. Nice Find!!