4G91 can fit....but need some modification coz bore not the same....dun ask me how......but there is 1 fella in this forum tat has done it b4.....forgot his nick though....
need a little help here... my gsr cam cover cracked so i was thinnking of replacing with a mivec head. is it possible to do up mivec turbo this way considering safety and extensiveness of the total modding package?