I have done a search but cannot seem to find the answer.
Other than the ECU and throttle system, are there any significant differences between the engines? Is there any difference between the head and the block on the two?
Basically I want to know if I could buy a Z18xe engine and fit it to my x18xe1 using the TB/Inlet manifold, exhaust manifold and ECU and wiring loom from the X18XE1 engine? Basically only swapping over the head and block?