ive just recently bought a datsun cherry f10 A120 with an A12 engine with a 4 speed gearbo and im looking forward to modify it, im thinking in swapping the A12 for another engine maybe a rotary mazda engine such as 13B REW or maybe a toyota 4A series engine, but to be honest i would prefer it to keep it within the nissan line of engine ,aybe a KA24 or the GA14 or GA16 or SR2O which ARE the most easy engines i could get here in my country, basicly what i want is to find an engine with an 5speed gearbox to fit in and also the radiator it would need and any other modification required to make it work with the engine you propose, thanks, the cost that it would have doesnt matter unless it becomes excesive, please dont meassure yourselves because there are no regulations nor limits for this in my country so size or aspiration arent any trouble