what is this engine?
 

I found this small block, four bolt mains, the pad on the front is K033TBM, below that, C94104408. Anyone know what it is? Couldn't make out the casting number, may be 9100781.
thanks, ken

Re: what is this engine?
 

That's a truck application.
Look for a casting date to determine useage:
TBM used in 1970 307 cid conversion/van C-10 & 1500
TBM used in 1979 350 cid conversion/van C-20 to 3500/Phoenix
TBM 1982 305 cid conversion/van C-10 to 2500

Re: what is this engine?
 

C94104408 con vin from a 1979 T&B

C - Chevrolet Truck
9 -1979
4 - Assembly plant code, 4 - Orion, MI
104408 - serial number of truck, last 6 vin digits