I questioned to get a estimate over a Sunday afternoon and been given it throughout the hour. That’s excellent customer service! T.U. NMThe RB25DE cylinder head from the 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 is also used, however an external oil feed h