It's a match to the GM Vortec 454 used in the trucks. The throttle body is on the side at a 45 degree angle, the upper plenum is crazy large, externally it looks identical to the truck engine in a freinds 3500 dually. At least I got a computer an injectors to use. Its my bad for not checking it out completely. I think I'll make a mailbox out of the intake. :lolhit: