Sea Ray Express Cruiser 390 1990 boat specs
Sea Ray
Sea Ray Express Cruiser 390 1990
1990
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VS
Sea Ray Sundancer 610 2011 boat specs
Sea Ray
Sea Ray Sundancer 610 2011
2011
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Sea Ray Express Cruiser 390 1990 vs Sea Ray Sundancer 610 2011 — Same Brand, Different Boat

The Sea Ray Express Cruiser 390 1990 vs Sea Ray Sundancer 610 2011 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.

The power gap is worth calling out. Rated to 1 050 hp, the Sea Ray Sundancer 610 2011 has a 680-hp advantage over the Sea Ray Express Cruiser 390 1990's 370-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Sea Ray Sundancer 610 2011 is rated for 18 passengers, while the Sea Ray Express Cruiser 390 1990 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray Sundancer 610 2011 could be the deciding factor.

Bottom line: Choose the Sea Ray Sundancer 610 2011 if your priority is putting more people on the water — it handles 18 passengers and at 61,6 ft it has the deck room to back that rating up comfortably. The Sea Ray Express Cruiser 390 1990 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 12 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail42.00 ft
Length overall - Detail61.60 ft
Length - Feet42
Length - Feet61.6
Length overall - Meters12.8
Length overall - Meters18.78
Length overall - Inches504
Length overall - Inches739
Beam13.11 ft
Beam16.90 ft
Beam - Meters4
Beam - Meters5.15
Beam - Inches157
Beam - Inches203
Draft [max] - Detail2.40 ft
Draft [max] - Detail4.90 ft
Draft [max] - Meters0.73
Draft [max] - Meters1.49
Draft [max] - Inches29
Draft [max] - Inches59
Displacement16400.00 lbs
Displacementnot available
Engine and Drivetrain
Fuel tank capacity - Gal3
Fuel tank capacity - Galnot available
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Litersnot available
Engine makeMercruiser
Engine makeMan
Engine model454 raw water cooled
Engine modelnot available
Horsepower370 hp
Horsepower1050 hp
Fuel typeGas
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Engine 2 Engine MakeMercruiser
Engine 2 Engine MakeMan
Engine 2 Engine Model454 raw water cooled
Engine 2 Engine Modelnot available
Engine 2 Horsepower370 hp
Engine 2 Horsepower1050 hp
Engine 2 Fuel TypeGas
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typeinboard
Engine 2 Drive Typeinboard
Operational Info
Sleeping capacity4
Sleeping capacity6
Cabins2
Cabins3
Head1
Head2
Water capacity1
Water capacitynot available
Holding tank capacity - Gal4
Holding tank capacity - Galnot available
Holding tank capacity - Liters151.42
Holding tank capacity - Litersnot available
Boat typePower
Boat typePower

Sea Ray Express Cruiser 390 1990 vs Sea Ray Sundancer 610 2011 — Common Questions

Which is the larger boat — the Sea Ray Express Cruiser 390 1990 or the Sea Ray Sundancer 610 2011?
The Sea Ray Sundancer 610 2011 is the longer of the two at 61,6 feet overall. The Sea Ray Express Cruiser 390 1990 comes in at 42,0 feet, making it roughly 19,6 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Sea Ray Sundancer 610 2011 is rated to a maximum of 1 050 hp, giving it the larger power ceiling. The Sea Ray Express Cruiser 390 1990 tops out at 370 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 Express Cruiser 390 1990 is Coast Guard rated for 12 passengers, while the Sea Ray Sundancer 610 2011 is certified for 18. 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 610 2011 measures 203" wide, compared to 157" for the Sea Ray Express Cruiser 390 1990. 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.
Are the Sea Ray Express Cruiser 390 1990 and Sea Ray Sundancer 610 2011 from the same manufacturer?
Yes — both the Sea Ray Express Cruiser 390 1990 and the Sea Ray Sundancer 610 2011 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.