Not been on the forum for away but yesterday the engine on my run around blew due to loss of oil pressure. not to sure on the damage yet but im preparing for the worst

its a 99 bmw 323 with full m3 kit and interior, no one can tell the difference but it has always lacked performance.. now as the engine may be knackerd i may aswell stick a quicker lump in it to make it worth while.

now i have two options

bmw 328 engine or a cosworth yb depending on how hard the conversion will be and what the cost will be like?

ive seen alot of e30 cosworths but not many e46s.. im guessing the conversion carnt be that hard as most of the work has been done in regards to rwd.. is it just case of new engine mounts and joining props. do i have to use the cosworth gearbox or is the bmw getrag one adaptable?

cheers matty