Originally Posted by gvanhouten

I was talking to Mike at Metric in California an picked his brain concerning longevity of the 603 engine. The car that I need to replace the head has 188,000 on it and asked Mike how long should the bottom end last? To my surprise he stated he would rebuild the whole engine. Not much longer he stated. I was shocked anticipating atleast another 100,000-150,000 with no problem. Am I delusional? All comments and experiences appreciated.