I've noticed that most either have used or recommend the KB's. Has anybody used Speed Pro pistons? They have friction coated skirts and 5cc valve reliefs and you can use the ring end gap that the ring manufacturer suggests. They do have a 1.660" compression height which puts them 0.027" in the hole on a stock block. I don't know for a fact but I've heard that they are not as brittle as the KB'S. Are they a good piston to use?
