Not built a top spec engine in ages and I'm thinking of treating myself 
 
	so I have a question...
 
	I have an sti v8 already so can use bits from that and what ever it will be either 2 or a 2.5 it will be fully forged so here goes..
 
	which is recommended as the better way, looking for future proof and reliability with either a 2.1L closed deck block using my v8 sti heads, or 2.5L semi closed deck (sti) using my v8 sti heads, or full 2.5lL semi closed deck and heads?
 
	 
 
	v9 STI  - B25C-702 engine for the 2.5L ok?
 
	 
 
	Would love a 2.3L but thats to much just for the bare bones
 
	 
 
	cheers 
 
	Michael