yes it will. you can use this kit with a lot of engines. i've used a 5.5 clone, 6.5 clone, GX120 (4hp), 5hp Briggs and 6hp Tecumseh Power Sport with the engine plate. if it's over 4hp and under 8hp there's a very good chance it will fit the plate.
also, all the clone engines (the Powerfist being one) are basically the same.