Originally Posted by img
Very nice, great Job guys. Just wondering why would you sleeve an S65 if you are just stroking it for an NA setup. Just curious !
Probably because they either don't have the equipment to properly bore an Alusil block, or, they don't want to use Mahle Alusil pistons and rings.
Edit: A third possibility that I never thought of until it was pointed out by a friend of mine was using sleeves to save an engine with a bore damaged beyond what a re-bore could correct. Basically if an engine failed and damaged a bore, sleeves could be used to save an otherwise unusable block.