91 z28 bought at 91k blown at 92k

 

hey i have an 86 and it has 230 original miles on it and never been rebuilt and runs like a champ motor wise only minor external issues.

 

What was the reason for the motor to blow? I had one from 120k to 212k and gave the car away and it still ran fine. Saw the guy drivin it a year and a half later ,asked him what he did to it,and he said just an oil change and a tune up.