Well my father and i have knowledge of the lt1 seeing as my brother has had one in his fiero for 6 years but we just dont have the time with him working and me going to school to tear it apart, so today were gonna take it to a mechanic and just be done with it so it'll be my dd next week.

 

How do you know it was replaced recently? The same guy that told you the opti was replaced as well.....?

 

Well here's the update, found the end tank on the radiator was cracked and spraying on the front of the engine when the temp and pressure came up . also found a loose ground at the head. Hopefully this is it !