hey pheonix im currently in the process of fitting a 1g-gze into my t-18. the motor and w55 (i think) gearbox are in. the length of the s/c pulley requires the removal of 25mm of the radiator support panel, custom engine mounts/gbox xmember but is otherwise just too easy. the radiator is moved heaps (100mm approx) forward which means removing the bonnet latch and using racing style bonnet pins. other things worth doing are the vented disks etc. rego should be no worries as long as all the work is done properly as the base capacity of 2000cc is an exceptable upgrade in w.a with the motor in it looks like the thing has come from the factory that way - hopefully ill be on the road in a week or two. oh yeah, the gze fits under the bonnet with room to spare - now that was a surprise! hope that helps