my friends has a 97 lt1 trans am with the 6 speed. he has slp clutch, slp intake, and texas speed and performance exhaust. it has 80k miles on it and runs great. well when idleing you can hear a slight tick coming from the engine. is this normal with lt1s or is it something like the valve train making noise or is it something in the bottom end. he changes the oil regularly and it runs very well and is still a clean and smooth running motor. what could we do to fix this or is it time for a rebuild.

 

Is it coming from the top of the motor?? If so it could be an exhaust leak, rocker arm, lifter or an injector. My stock injectors are loud.

 

yeah it seems like the top of the motor

 

Also, with the SLP's metal intake, it could be the valvetrain resonating through the CAI...

 

it was even before the slp intake. i had a 97 formula that did the same thing. it seems like the valves are ticking but i dont know

 

I would say try adjusting the rockers....My friend did this several times and it usually fixed the noise. Just a guess though

 

Thats what mine was, back of the head on the pass side was leaking. New set of gaskets, fixed it right up