Well unfortunately, yesterday, due to an unexpected situation my stock 04' WRX (43k mi. engine) got a spun bearing. So I've decided to go ahead an replace the shortblock, my question is how much work will it take to properly replace by old 2.0 shortblock with an 2.5 Sblock? Or should I just stick with the 2.0?
Thanks in advance guys seriously. Plus, if you guys have a better plan that you think I should go with, please do tell.