Classic Honda power question

[robodonkey2005]

Howdy folks, anyone here know the BHP for the following Honda CBs:

1978 400 4 F2
1973 500 4 (Euro Spec)
1973 550 4 (US import)

Thanks

I've been toying with getting back on a bike and I rather fancy one of these older models, just need to confirm the power for license etc

If they are over 33bhp (which I guess the 5's will be) is restriction of these older ones do-able?

Oh, and if the claimed BHP is close to 33bhp at time of manufacture, is it possible that the engine no longer makes that (ie get it dyno'd and get a cert that way?)

Cheers for any info.....

[robodonkey2005]

Cheers for that

[robodonkey2005]

Fear not, I am indeed a shortar$e
One of the attractions of the older bikes seems to be that they were designed for shorter folk....