Sea Ray SDX 270 Outboard 2018 boat specs
Sea Ray
Sea Ray SDX 270 Outboard 2018
2018
View full specs →
VS
Sea Ray Sundancer 320  2022 boat specs
Sea Ray
Sea Ray Sundancer 320 2022
2022
View full specs →

Sea Ray SDX 270 Outboard 2018 vs Sea Ray Sundancer 320 2022 — Same Brand, Different Boat

The Sea Ray SDX 270 Outboard 2018 vs Sea Ray Sundancer 320 2022 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Sea Ray Sundancer 320 2022 measures 35,4 feet overall (2022), giving it roughly 6,2 additional feet of deck space compared to the Sea Ray SDX 270 Outboard 2018 at 29,2 feet (2018). Weight tells a clearer story for trailering families: the Sea Ray Sundancer 320 2022 tips the scales at 14 000 lbs — 8 340 lbs less than the Sea Ray SDX 270 Outboard 2018 at 5 660 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 300 hp, the Sea Ray Sundancer 320 2022 has a 50-hp advantage over the Sea Ray SDX 270 Outboard 2018's 250-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray Sundancer 320 2022 carries 158 gallons versus 65 gallons in the Sea Ray SDX 270 Outboard 2018. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Sea Ray Sundancer 320 2022 is rated for 10 passengers, while the Sea Ray SDX 270 Outboard 2018 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray Sundancer 320 2022 could be the deciding factor.

Bottom line: Choose the Sea Ray Sundancer 320 2022 if your priority is putting more people on the water — it handles 10 passengers and at 35,4 ft it has the deck room to back that rating up comfortably. The Sea Ray SDX 270 Outboard 2018 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail29.20 ft
Length overall - Detail35.40 ft
Length - Feet29.2
Length - Feet35.4
Length overall - Meters8.9
Length overall - Meters10.79
Length overall - Inches350
Length overall - Inches425
Beam8.60 ft
Beam10.70 ft
Beam - Meters2.62
Beam - Meters3.26
Beam - Inches103
Beam - Inches128
Draft [max] - Detail3.20 ft
Draft [max] - Detail4.10 ft
Draft [max] - Meters0.98
Draft [max] - Meters1.25
Draft [max] - Inches38
Draft [max] - Inches49
Draft Min2.20 ft
Draft Min3.00 ft
Displacement5660.00 lbs
Displacement14000.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal65
Fuel tank capacity - Gal158
Fuel tank capacity - Liters246.05
Fuel tank capacity - Liters598.09
Engine makeMercury
Engine makeMercruiser
Engine model250HP Verado®
Engine model6.2L MPI ECT Bravo
Horsepower250 hp
Horsepower300 hp
Fuel typeGas
Fuel typeGas
Drive typeoutboard
Drive typenot available
Operational Info
Head1
Head1
Water capacity2
Water capacity32
Boat typePower
Boat typePower
Sleeping capacitynot available
Sleeping capacity4

Sea Ray SDX 270 Outboard 2018 vs Sea Ray Sundancer 320 2022 — Common Questions

Which is the larger boat — the Sea Ray SDX 270 Outboard 2018 or the Sea Ray Sundancer 320 2022?
The Sea Ray Sundancer 320 2022 is the longer of the two at 35,4 feet overall. The Sea Ray SDX 270 Outboard 2018 comes in at 29,2 feet, making it roughly 6,2 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray SDX 270 Outboard 2018 or the Sea Ray Sundancer 320 2022?
For trailering, the Sea Ray SDX 270 Outboard 2018 has the edge at 5 660 lbs dry weight versus 14 000 lbs for the Sea Ray Sundancer 320 2022. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Sea Ray Sundancer 320 2022 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Sea Ray SDX 270 Outboard 2018 tops out at 250 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Sea Ray SDX 270 Outboard 2018 is Coast Guard rated for 8 passengers, while the Sea Ray Sundancer 320 2022 is certified for 10. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Sea Ray Sundancer 320 2022 measures 128" wide, compared to 103" for the Sea Ray SDX 270 Outboard 2018. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Sea Ray SDX 270 Outboard 2018 or the Sea Ray Sundancer 320 2022?
The Sea Ray Sundancer 320 2022 has the bigger tank at 158 gallons, versus 65 gallons on the Sea Ray SDX 270 Outboard 2018. That 93-gallon difference translates to roughly 279–465 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray SDX 270 Outboard 2018 and Sea Ray Sundancer 320 2022 from the same manufacturer?
Yes — both the Sea Ray SDX 270 Outboard 2018 and the Sea Ray Sundancer 320 2022 are built by Sea Ray. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.