I forget the model numbers, but I think yours is one of the big ones with a single stage pump and two stage cylinder. My old Lickity had the 8hp Kohler and I swapped out an electric start 12hp. The 12 was about worn out too and I was going to convert to the HF Predator, but sold it first. The Kohlers take a larger bolt pattern adapter for the pump. The Predator takes the same one for a Briggs. You may have to get half a Lovejoy to fit the pump, and half to fit the engine. Should not be a problem. Not many folks know how a Lickity work so if people start talking about a new two stage pump, it won't work. Try calling Webbs Farm Supply, 408 395 2227. I may be wrong. Mine was a MK348, yours might be one of the newer ones with a two stage pump. Super3 will have better info if he sees this, good luck, Joe.