Accepted Answer

these engines are notorious for leaking intake gaskets ....usually external leaks but occasionally leaking into the engine causing the milky condition - however i have seen these intakes changed a couple times only to have to disassemble again further to repair blown head gaskets(traditionally the cause of milky condition usually accompanied by overheating) , now to answer your question - i do not believe you have a cracked block i believe you initially had a bad intake gasket leaking which eventually led to the overheating and consiquently the failure of the head gaskets...on the plus side these cylinder heads are pretty rugged and can usually take being overheated without cracking so you can probablly get away with just having the heads machined (cut flat as overheating tends to warp the gasket/engine block surface) and replacing the head gaskets /thermostat etc. and as far as the best way to clean it out - drain it pour in 2 quart motor oil and 2 quarts diesel fuel or kerosene run for 3-5 minutes and drain again..please be sure to use the green accept button - thanks..let me know if i can assist you further

Edited by Kevin on 5/21/2008 at 2:20 AM

Expert:	Kevin
Pos. Feedback:	97.8 %
Accepts:
Answered:	5/21/2008

ASE Certified Technician

15 years experience domestic and foreign car and truck repair