help needed
 

i got and engine off ebay the guy said it was out of a 1996 wrx ej20 everything is fine with the engine.
My mechanic has had a good look this is what i am wanting to know the engine has solid lifters in the head and metal haeadgaskets i was told this only came on the sti is there anyway of telling if this engine is infact a sti engine cheers as if it is then that would be better cheers:luxhello: