I have seen a few GTR's with Ford engines. Im going with a LS1 and G50/50. the G50/52 is not as good of tansaxle comparded to the G50/50. with the 50/52 you have to use a stock starter ($400) and a stock clutch. If you go with a G50/50 you can use a aftermarket starter ($150) and a race clutch...