Vr4 engine swap
 

Ok here is my situation. I just bought a 91 vr4 shell. It currently has a blown engine and transmission but everything else looks good. I am trying to source an engine and was wondering how much work it is to put the jdm 94 engine into a 91. I found a long block with an 6 speed transmission for 2000 and it seems like a great deal.
I am mainly concerned about the ECU. And what accessories from my 91 will bolt up to the long block.
I am also new to this community and would appreciate any resources to help me learn about this platform