Use a table ban saw to hack off the 340 piston crown .

....or just lay the pistons in between palings on the pallet, and fee-hand cut them with a circular saw.

Make sure to use the correct blade.
Eh, you don't need no fancy blade, just run a paneling blade backwards and go really slow........slowwww, NOOO000000! I'm Thinking he needs to take the correct # and mail em to 1wildRT... sure you can do it just about every way it's been discussed but I mean come on man we're dealing with something that's supposed to be Precision, dammit!!