I have a used set of JE flat top pistons for use in a blower motor. they are 4.500 with 1.395 compession height and 3.00cc valve relief. they do not have any numbers on them but from all the measurements they are the same as JE #257971. they have about 30 hours on them and look to be in nice shape with no discoloration on the bottom of the domes. they have the pins and spiro locks but I have not counted to see if all the locks are there. I can send pictures and feel free to ask any questions. asking $300 obo.
thanks
steve
[email protected]
cell. 954-270-2628