Even if they fit they wouldn't be worth it. If you can get the cash definately go with a B18C. I just threw a rod in my Si but B16A longblocks are just too damn cheap to pass up these days. Either way, just throw some CTR cams in it grab some cam gears, bump your CR with a thinner HG or by milling the head (I'm doing mine .025 should be close to 11:1 with some GS-R cams this time around). The Type R valvetrain isn't a bad idea either.