The old hf 6.5 clone engine is no longer sold at my local hf store. And the new predator series is in abudance. I recently read a thread that stated the internals have some differences between the old and the new. Does anyone offer the aftermarket parts to do a similar build as Sportscar pat,lurker,or cobra freak? If so this would be the engine of choice for my elgin boardtrack build. If i have missed a link to the build up of this engine I would appreciate if someone could post it. Thanks to all that contribute to the hf builds and good luck to cobra freak at the easyrider show. Red.