advance auto. they are stock oem cast pistons. they came in and their all four but their small and puiny. is that a deal or should i be worried about them if their going into a z6 engine?

 

I personally don't use anything along those lings, i am very very **** retentive about using High quailty like JE and such.

What is this motor going to be used for? daily driver? track car? if it is going to be a track ***** i wouldn't skimp on the internals of the motors because that is the heart and soul of the car

Plus everything i have bought from advance has sucked ***. ie brake pads, axles and what not. All taht for my daily driver and the pads make a horendous noise, and the axle didn't last to long either (i don't beat on the car)