ok i bought a 300zx with a messed up motor..its a 1992 300zxtt..i am planning on buying a low milage jdm motor for it..is there any differences and how can i tell if its a 1992 and above motor? was there any differences between the 90-91 motors compared to the 92-96? anyone knows a good place to purchase a good low milage jdm tt engine on the east coast?