Monterey 278SSX 2008 boat specs
Monterey
Monterey 278SSX 2008
2008
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VS
Monterey 400SY 2011 boat specs
Monterey
Monterey 400SY 2011
2011
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Monterey 278SSX 2008 vs Monterey 400SY 2011: Same Brand, Different Boat

The Monterey 278SSX 2008 is a deep-V design and the Monterey 400SY 2011 is a modified-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Monterey 400SY 2011 measures 41,0 feet overall (2011), giving it roughly 13,0 additional feet of deck space compared to the Monterey 278SSX 2008 at 28,0 feet (2008). Weight tells a clearer story for trailering families: the Monterey 400SY 2011 tips the scales at 22 000 lbs - 16 500 lbs less than the Monterey 278SSX 2008 at 5 500 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.

Both boats share a closely matched power ceiling - 425 hp for the Monterey 278SSX 2008 and 435 hp for the Monterey 400SY 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Monterey 400SY 2011 carries 330 gallons versus 89 gallons in the Monterey 278SSX 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Monterey 278SSX 2008 is rated for up to 8 people. Passenger data for the Monterey 400SY 2011 wasn't available.

Bottom line: The Monterey 400SY 2011 at 41,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Monterey 278SSX 2008 at 28,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeMonterey
MakeMonterey
Model278SSX
Model400SY
Model Year2008
Model Year2011
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam12 ft. 6 in. (3.8 m)
Beam - Meters2.59
Beam - Meters3.81
Beam - Inches102
Beam - Inches150
Deadrise21°
Deadrise17℃
Weight - Detail5,500 lbs. (2,495 kg)
Weight - Detail22,000 lbs. (9,979 kg)
Weight - kg2494.76
Weight - kg9979.02
Weight - lbs.5500
Weight - lbs.22000
Length - Meters8.8
Length - Metersnot available
Length - Feet28
Length - Feet41
Length - Inches10
Length - Inchesnot available
Length overall - Detail28 ft. 10 in. (8.8 m)
Length overall - Detailnot available
Length overall - Meters8.79
Length overall - Metersnot available
Length overall - Inches346
Length overall - Inchesnot available
Bridge clearance - Detailnot available
Bridge clearance - DetailWith Arch: 10 ft. 7 in. (3.23 m)
Bridge clearance - Metersnot available
Bridge clearance - Meters3.23
Bridge clearance - Inchesnot available
Bridge clearance - Inches127
Draft [max] - Detailnot available
Draft [max] - Detail45 in. (114.3 cm)
Draft [max] - Metersnot available
Draft [max] - Meters1.14
Draft [max] - Inchesnot available
Draft [max] - Inches45
Length [over all with swim platform]not available
Length [over all with swim platform]41 ft. (12.5 m)
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standardMerc 350MAG BRIII 300 hp
Engine/s standardnot available
Fuel tank capacity - Detail89 gal. (337 l)
Fuel tank capacity - Detail330 gal. (1,249 l)
Fuel tank capacity - Liters336.9
Fuel tank capacity - Liters1249.19
Fuel tank capacity - Gal89
Fuel tank capacity - Gal330
Fuel typeGas
Fuel typeDiesel
Drive typeInboard
Drive typeInboard - Twin
Engine max425 hp (316.9 kW)
Engine maxT-435 hp (T-324.3 kW)
Operational Info
Water capacity15 gal. (57 l)
Water capacity75 gal. (284 l)
Holding tank capacity - Detail16 gal. (61 l)
Holding tank capacity - Detail39 gal. (147 l)
Holding tank capacity - Liters60.57
Holding tank capacity - Liters147.63
Holding tank capacity - Gal16
Holding tank capacity - Gal39
Headroomnot available
Headroom6 ft. 5 in. (1.96 m)

Monterey 278SSX 2008 vs Monterey 400SY 2011 - Common Questions

Which is the larger boat - the Monterey 278SSX 2008 or the Monterey 400SY 2011?
The Monterey 400SY 2011 is the longer of the two at 41,0 feet overall. The Monterey 278SSX 2008 comes in at 28,0 feet, making it roughly 13,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Monterey 278SSX 2008 or the Monterey 400SY 2011?
For trailering, the Monterey 278SSX 2008 has the edge at 5 500 lbs dry weight versus 22 000 lbs for the Monterey 400SY 2011. 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 Monterey 400SY 2011 is rated to a maximum of 435 hp, giving it the larger power ceiling. The Monterey 278SSX 2008 tops out at 425 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 passengers can the Monterey 278SSX 2008 carry?
The Monterey 278SSX 2008 has an official capacity rating of 8 people. Capacity data wasn't available for the other model in this comparison - verify directly with the dealer.
Which boat is wider, and does it affect trailering?
The Monterey 400SY 2011 measures 150" wide, compared to 102" for the Monterey 278SSX 2008. 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 Monterey 278SSX 2008 or the Monterey 400SY 2011?
The Monterey 400SY 2011 has the bigger tank at 330 gallons, versus 89 gallons on the Monterey 278SSX 2008. That 241-gallon difference translates to roughly 723–1205 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Monterey 278SSX 2008 and Monterey 400SY 2011 from the same manufacturer?
Yes - both the Monterey 278SSX 2008 and the Monterey 400SY 2011 are built by Monterey. 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.