The question you gotta ask yourself is...if the block is still the original are you ready to shell out up to $8000(maybe a little less) more to have it replaced. If i had the $16000 i would save a little more and get an e34 M5.Word to the wise...never buy a car with World famous major problems.There are so many other nice BMW's out there that it just aint worth it.why roll the dice.