I'm not a OPE guy....I've yet to skim the surface on engine reading.
And the replacement would be a 9-11 HP engine....
Are the Predators just as good as the ~well talked~greyhounds.
Sorry Mobile, I have never used the newer predator engine, but have flogged the hell out of quite a few greyhounds and haven't broken one yet. YOu can go to the harbor freight site and see how well reviewed the new engine is. The old greyhounds got very good reviews from owners on the harbor freight site.
Pretty hard to beat a 6.5hp engine for 99 dollars as long as it runs well.