i love rb engines and i have one that i got for a bottle of jack i bought the coupe for 600 with everything but motor this build will cost less then 3 g. i can do all the fab work at the end of the day engine reliability comes down to the tuner and im not asking for mas power just around 300 and a forged rb will give me that. ill be putting a plenum on that iv fabed to lower engine height plus will get a diff sump to make it fit perfect. i dont know 1j or 2j engines but i know rb engines and will have no problem fixing it if it breaks thats if it does which i doubt. im very confident in my tuner to deliver results not cos he is a mate but because he is good plus he is helping me build this car so he will now what is in it and not in it. there seems to be heaps of 1j swaps i want something difernt and want a rb in my bmw coupe. i understand the 1j will be a better fit and more sorted but i dont like the easy option out i like fiddling and doing things differnt thats y in undertakeing this conversion