U can stroke them that high? I was thinking it would be fun to deatroke one, put a sweet top end on it with roller cam and you would be able to rev the everloving piss out of it!!! That would be fun I think.
Well I guess its a 461 http://www.gofaststuff.com/kits.html
Why would you want to destroke a motor that goes in a tank of a truck?

For these heavy trucks I think you want torque more then you need HP.