Ther'es alot to keep track of in the zx as for wires and vaccume lines, and even weird little coolant lines. I think it would be alot easier in a carbed z. It's not hard, so long as you have the tools and a roll of masking tape to labell everything. I would'nt take any chances with that, unless you know your engine bay by heart. You'll need a 10mm allen socket for the head bolts for sure, and you may find you'll need a couple other things along the way that you don't have. Have fun.