OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Honda Engines Which Honda engine..?

Here's a link that tells you how to work HP out. It's a bit complex, but if you work through it, you should be able to work it out and there's a few other cool things there too,

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG17504


and this link is a good site for conversions.

http://www.onlineconversion.com/

Hope it helps. Cheers.