Matching a deep vee Alumacraft Dominator 165 CS 2010 against a modified vee Alumacraft Dominator 175 Sport 2007 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Alumacraft Dominator 165 CS 2010 at 16,7 ft versus Alumacraft Dominator 175 Sport 2007 at 17,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Dominator 175 Sport 2007 tips the scales at 1 482 lbs — 307 lbs less than the Alumacraft Dominator 165 CS 2010 at 1 175 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 150 hp, the Alumacraft Dominator 175 Sport 2007 has a 60-hp advantage over the Alumacraft Dominator 165 CS 2010's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 2 gal and 4 gal — so range won't be a tiebreaker here.
Both boats are rated for 5 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft Dominator 175 Sport 2007 comes in at 10 lbs per hp versus 13 lbs per hp for the Alumacraft Dominator 165 CS 2010. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: Performance buyers should lean toward the Alumacraft Dominator 175 Sport 2007 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Alumacraft Dominator 165 CS 2010 with its 90-hp rating is the more economical daily driver.