So after a little bit of research the title does start with a t code so it seems that the information about this being a "t" series truck seems to make sense. As far as the engine goes, I'm still not sure what exactly came in it. The heads on the engine that's in it currently don't look like 409 heads, maybe the 348? Honestly it still "looks" like a sbc to me, but I haven't dug into it. More research will need to be done to decipher block.
