okay ill go with the LS pistons, i had wiseco pistons in my last block and 3 out of 4 them cracked so i dont wanna buy new forged pistons right now, ill wait until a do a full gsr build one day. i do have a block guard though. what i want to do is build a decent n/a motor to get me around and can also be sprayed once in a while without blowing up. my goal isnt horspower i just want something with good torque