This is from a coworker. He pulled this out of his 72 C-10 4x4 to put a new one in. He believes it's an LS6, and will pull the serial number this afternoon, and I'll post it here when I get it. He's a motivated seller so this could be a steal. I have seen it run when it was in the truck, and it ran nice. Can't say anything since he has pulled it out. I wish I could use it, but can't. I asked him what he meant by complete so in his own words: Complete meaning turn-key motor: (carb/air filter, intake manifold, electric ignition/wires/dist cap, water pump, headers, fly wheel, radiator/clutch fan, alternator, power steering pump and reservoir, pulley system and belts, and rotating motor stand.) I need to move it out of my garage…. If interested, shoot me a PM so he can contact you. You can talk price with him, he was mentioned $1000 for everything.