I guess i should have said what i had to make it a little easier. SORRY. I have a d16z6 block with JE SRP cutom made pistons(as i was told). The only thing the pistons have on them is SRP and the number 10. I am buying a ZC head that has been built with cam valve etc and port and polish plus he has the ecu chromed for a high comp motor. I wanna make sure i do this right though.