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....
i have a putra wit gsr 4g93t just converted 2 months ago..
now the prob is the other day i had a good run with it..
den when i tried running on 1st gear again,
suddenly like no power at all..engine...