I have a 1987 chevy s10 2.5 4 tech motor rebuilt not even two months old I was driving last night and motor making a strange grinding noise like when u shift into a wrong gear my transmission seams fine but the motor is under warranty

 

I think you've got the wrong forum 😳

 

Take off the fan belt (belts?) and start it up, see if the noise is gone. Could be water pump or alternator maybe?

 

Well I took the belt off and it's still there I replaced the altnator bracket that was cracked in two and got it to start up but it sound like something internally that might be messed up like a bent valve or a bad piston ring might gone out or even spun a bearing somewhere when I hold the valve cover I can feel as well as hear it so could it be a bad valve