It's true that the Verado weighs a "little" more than the SHO, 505 vs 635. I personally think they are BOTH great engines. HOWEVER....{this is one of those BLACK issues...LOL}, the Verado series of engines is designed from the ground up as a supercharged motor. In other words.... in-line 6, intercooled, blown, NEVER needs valve adjustments, 6400 rpm WOT rpm, did I say quiet, fly-by-wire throttle and shift, POWER steering, etc. Sorry Yamaha, BLACK rules.....with RELIABILITY TO MATCH!!!