I have a set of P30 pistons that came out of a Running hmotors engine.There standard 81mm pistons. There still on the rods and are waiting to be pressed out. I have no end Caps. I Accidently gave them away when i sold the block. They have OEM Honda rings which are in good condition. I cleaned up the Piston with Throttle Body plate cleaner. Looks brand new. Looking for $125 OBO.