i read on another forum whilst searching about fuel pumps that i can put a 16v RS2K head on my engine? how involved is that?

i presume i'll need to re-loom/ecu, intake/exhaust manifold.. but apart from that? what about the cam belt/chain, the DOHC uses a chain, what about the RS2K, would i need to change the cam sprocket things to the chain type i presume?

cheers.

oh and what sort of power does this conversion produce?! apparently it'll fly