Duster Help
If all you have to go by is photos, the seller will have to take some good photos showing some distinctive 360 characteristics. i.e.: balancer/damper, block casting # or actual engine size casting number. He already lied about the rear, so who knows about the condition? (Blue silicone on the hot exhaust?) Or if he doesn't know enough to recognize the rear, he probably can't recognize the engine. If he's not within a convenient distance so you can confirm it yourself, and you could also inspect & drive it, I'd consider looking elsewhere....unless it's a VERY good deal and you don't have high expectations..