You fellas actually saved me a lot of issues using a disgruntled shopper on this one particular. Ralph, I owe you men a beer when next I appear over on the warehouse. Arigato!The RB25DE cylinder head from your A31 Cefiro C33 Laurel or R32 Skyline (aka: Non VCT) could be used. The RB25DET (through the R33 Skyline or C34 Laurel or Stagea) head can be