1G 94 head on a 91 engine

[gabe600r]

I am putting a 94 head on my 91 engine I know I have to drill out the head bolt holes for the bigger bolts cause the 94 uses a smaller bolt but is there anything else that has to be done for it to work?

 

[FLASH1970]

Might as well do this too...

http://www.dsmtuners.com/forums/newbie-forum/341028-4g63t-head-oil-port-mod.html

I think there's one other oil port mod. But if the holes are drilled to accept the 12mm head studs/bolts that's really all you need to do.