TND engine suffix

[TAVBFL]

350 in a 1992 C1500. Stamping is K0309TND. I can't find anything on the suffix TND. I believe the K means it was built in St. Catherine's Ontario and 0309 are the month and day.

 

[MrPink]

You sure it is a 350? TND is indicative of a 305, TMD would be a 350 from a 74,77, 79 medium duty, bus, or van chassis