JDM vs USDM,
only one of the cams is different. Intake I believe. 440cc high impedance vs 550cc low impedance injectors, MAP based instead of MAF based, ceramic compressor wheels instead of steel..
As for the aristo motor vs Supra, the sump is different, and I THINK they use slightly different turbos, but I would have to look at the twins I have to prove that.