with what? how much did you take off? are you sure of the integrity of the piston? you have less material now so there is going to be more heat. Your compression ratio will change as a result, and each cylinder is not going to be as equal as possible as intended by original manufacturing. What exactly do you mean by "ding"

Why are you using arp head studs? Is there something wrong with the stock hardware?

Quote Originally Posted by pyro
They did scrach the pistons and took a little ding off of one but i sanded them down flat and smoothed em out so there shouln't be a problem.