I'm picking up a zc from the salvage yard for $200.. has low compression. must have been swapped in at some point as a replacement. from what I have gathered it is the exact same thing as a d16y7?? please please correct me if I am wrong! I want to start getting the stuff I need for the rebuild ordered, but before I do I would like to verify that it needs y7 gasket set and rings. thanks in advance guys -kay