Je blower pistons assembled but never run, with new rings and new std size king bearings. Eagle rods with l19 bolts 6.535 long (+.400) bore 4.500 stroke 4.500 set up for tall deck block. This will make a 572. I bought the whole short block and it had not ben run, i am not going to use the blower pistons. Je part # 275947. You can own this whole setup for $700.00 and i will pay for the shipping.