Inliners International Forums General Discussion Engines what year is my 250 engine

This info from Hollander Interchange, 40th ed

TE is a 230 in 65,
but a 250 from 66-68 used in C10-C30 trucks.

I'd say it has to be a late 67 model (G287 = July28, 1967)
I think in 1977 the engine suffix were all three letters.

Pete