Several years ago I gave my grandson a '90 NA auto Z32 with 60K miles on the odometer. Now it is losing compression on three cylinders (two on one bank and one on the other). I am contemplating replacing the engine with either a JDM engine or having the existing engine rebuilt. Any advice would be appreciated.
How much risk in JDM engines? Can anyone recommend a place to acquire a quality rebuilt engine? General recommendations please.