Here you go, I knocked this up for quick reference.
For naturally aspirated engines, I don't care who you are, unless you're a top flight motorsport engine builder, you're not breaking 215psi BMEP. That translates as about 88lbft/litre. Anyone claiming they make more from an old tuned up Honda is either a bullshitter, has been bullshitted by an optimistic dyno.
Likewise, piston speeds. Even F1 engines are knocking around 25m/s. You can go higher, but not many do if the engine has to last a long time.
From that, you get an impossible maximum power figure. Impossible because you'll not be making the peak torque figure and the maximum RPM figure, so forget ever achieving this number, it's just a means for comparison.
Plug in the numbers for the B16B (77.4mm stroke, 1595cc) and B18C (87.2mm stroke, 1795cc).