These pistons are on e-bay. The seller does not know what they are from. Here is what info he provides. 6 cylinders number on one cylinder reads 90ZN2 W3N...
6 Mahle Pistons one of the numbers read C031 90L61
I am in need of 6 Original spec '65 911 pistons. Let me know my e-mail is:
klober23@hotmail.com or send me a private message thanks
http://cgi.ebay.com/ebaymotors/Vintage-911-Porsche-Cylinders-Mahle-Pistons-196_W0QQcmdZViewItemQQcategoryZ34202QQitemZ4606881 836QQrdZ1