F7r conversion

[Lbird]

Hi need help . Am buying a f7r bottom end and ecu with forged pistons and rods . Not just standard . It's for my 1.8 valver . I have been told to use 1.8 cylinder head on f7r bottom end off my r19 . Just wonderd if there is any thing else I would need to change ie 2.0 tb or gear box or once head is fitted would it be plug and play . And suggestions much appreciated cheers