ok ive never posted before, but, ive been searching a but load and came up with a beautiful NA set up for the d16y8 (yes im keeping that block. its decided. there will be no swap) but then i sat down and noticed how flat my wallet is, and came up with something more realistic. As for sleeves, on a NA d16y8 motor, expected for 200bhp, maybe 170 at the wheels (with or with out n2o). Ive read every post with the word "sleeve" in it, applicable to NA motors. Weather its needed or not I mean. And the closest and most bluntly helpful piece of info i found isss ::Calesta:: This kind of BULLSHIT is really fucking pissing me off. I don't understand why the fuck everyone is so concerned with the B20 sleeve cracking or breaking in an NA application. Hell, it's strong enough to hold quite a bit of boost on its own too. The reason why the B20 breaks in NA applications is the same reason why LS/VTECs break- someone built it wrong, or someone beat on it to the extent that any engine would have blown up. You do NOT need to resleeve a B20 to run a VTEC head on it with high compression pistons. Just build the engine with the proper parts, assemble it correctly, and you'll be fine. :: Calesta:: That gave me a strong "NO" feeling. But just to make sure, that advice is for a b20 block, im assuming the same applies to a d16 block? hell i dont want the bitches anyways..freakin expensive. i was just gonna do a .5mm bore n hone. i got the impression from the search that sleeving NA motors, specially 200bhp NA motors is NOT necessary..