make sure u dont have a spark plug wire acrcing., when its dark out, look for arcing.. also could be a sticky lifter, a little marvel mystery oil will usually take care of it.
i havent checked for arcing i just put new coil and rotor plug wires and plugs in it i will try that and i ran seafoam...
im pretty sure its the flex plate or maybe the starter gear i thought it was piston slap for a while but i onky hear it on start up and above 1500 rpm and listening to my engine it sounds perfect and i can go under my truck and hear it right inbetween my torque converter and my engine
I bought this 95 ext cab sport side z71 never seen another one like it in my area or before really but thats besides the point i have this strange tick when i first start the engine it ticks loud 4 times then i can only hear it above 1,500rpms when driving or reving not rhe engine almost sounds...