All motor K20 build: Block: Wiseco Pistons 12:5:1 86.5mm bore BluePrint Pro I-beam Rods Polished and balanced crankshaft ARP main studs ACL Race Bearings All parts were brand new when bought block is in great condition it has about 2k. Engine is capable of revving comfortably to 9000k! Mine was RichTuned to 8800k. Serious buyers only if your interested to come take a look your welcome or need some better pictures. I have receipts of machine work being preformed by a local shop.