Quote: OK ....who makes the best piston with the least amount of "rock" ?
Probably KB... they tend to run the closest piston to wall clearances but they arent the strongest
Does Diamond have a piston design that can be run with less p2w clearance ?
Pistons, like many of the race parts we buy, are application specific. Those that "push the envelope" on their builds To gain the HP edge, run on the edge. Example: Tight piston to wall clearance is good. Those pistons are usually cast with a high silicone content - minimal heat expansion. They are not as strong as forged pistons and very intolerant to detonation. ( don't ask me how I know ). They also require large ring end gaps. For low performance applications they are the choice. Building a 600+ HP motor, you will want to go forged.
