I work at the local Harbor Freight and we've received word that a 670cc 22hp v twin engine with electric start is on it's way. It may be here by the end of May or even earlier, since we'll be reorganizing the engine planogram in a few weeks. It appears to be a Honda gx660 clone based on the specs and some of the pictures. Regular price is listed at $600. I was going to get the 420cc clone to replace my aging Tecumseh, but this might be worth waiting for.