The dealer has there quirks with the warrantee (witch i think they try to weasel out of every chance they get) But i had an LM1 chevy 350 crate motor installed in my 85 k5 and the motor was 1000.00 (knew some people down at the place and got a deal)for the 350 4 bolt LM1 ,i paid some family backyard guys 1000.00 for labor. the intake was 200.00, i think all in all the whole thing was like 2800.00-3000.00 with everything. It was really a PITA though because of the 85s california smog crap, all the spaghetti lines everywhere,i diddnt realize what a peice of crap system was on the 85 until we took it all apart,what a nightmare,chocked down,smothered way to design a k5.........ill never buy that year again.It took 2 guys that were older and knew WTF they were doing to take all that crap off and getting it running decent. I am glad for you you have an 89, i think they were less of a PITA,and not carbed, but man, it better be the truck you want , becuse if its not youll regret it later .I would consider **Rebuilding the motor** first, /forums/images/graemlins/thumb.gif good luck,jacob*