previous to my thread on buying ver3 sti heads, i may have a bottom end coming,

wot would i need to fit it in ? ie can i use my loom etc, would i be better of staying with my cdb or fitting the ver3 bottom end with the heads,

sorry for 100 questions but need to know if im going down the right route, as i know the ver3 can give me about 330bhp,where my wrx is about the 300bhp mark max,

looked into doing my engine to handle that sought of power ran in to 1000s, where as the ver3 engine will set me back £150/£200

 

Is it an sti bottom end?