I am having my Esi Block work on a 3-Stage D15B head. there are several issues with this project though, still sorting it out. The ECU for the 3-stage engine is a P2J box, of which several sensors which are not present in the non-vtec Esi engine is now present. The stock P27 Esi ecu can run the engine after the swap, no vtec yet. Mechanically it is possible, but with engine management, as i have said, still sorting it out as of the moment.
