We had a 351 for two seasons. Great unit and didn't have any significant issues. Minor warranty work was done, but you will have a great time with it. We just sold ours for a toy hauler, but was very happy with the old unit.
2015 Seismic Wave 310
2013 Chevy Silverado Crew Cab w/the marriage made in heaven, "Duramax & Allison".