Hi can anyone tell from what year, to what year they built the 366 engine in chevy and GMC type 5 ton trucks.?
I do not know much about them and I am having a hard time getting information on them since they were not used in one ton trucks.

Did they ever make the blocks for a 366 engine cheap and low quality in Mexico, like they did with the 350 four bolt main engine starting in 1978.?

There an odd engine I never heard much about them untill now, I thought I would ask about them since some people on this clip have been talking about wanting to use them, thanks.