Other post was for a 92 ls i was wrong it is a 95 ls engine with lsd trans givin it to me for 525 need to kno what kind of mounts should i get and should i get his harness and ecu?? Axles too right? Right now i have my stock engine

 

You can use your stock mounts, look into how and what brackets you would need to do it though. Stock harness can be re-used. Use the ECU for the motor. Use the axles for the motor (B series).

Search around a little bit in order to get a complete list of parts needed.