Well, this is my first post, so here goes..<br /><br />Had engine checked the other day. As it turns out, both manifolds are shot and the head is cracked. The engine "was" a 1992 Merc. v-6 175h, 4.3l 2 barrel. I can get the same engine in a '91 with a 4 barrel installed for 1800 bucks. Any...