Larson LX 710 I/O 2011 boat specs
Larson
Larson LX 710 I/O 2011
2011
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VS
Larson SEi 180 Fish Series I/O 2006 boat specs
Larson
Larson SEi 180 Fish Series I/O 2006
2006
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Larson LX 710 I/O 2011 vs Larson SEi 180 Fish Series I/O 2006 — A Close Look at Two Modified Vees

When two boats share the same hull type — in this case both the Larson LX 710 I/O 2011 and the Larson SEi 180 Fish Series I/O 2006 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Larson LX 710 I/O 2011 at 17,1 ft versus Larson SEi 180 Fish Series I/O 2006 at 17,0 ft. At 204 lbs and 265 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The Larson LX 710 I/O 2011 carries a rated maximum of 135 hp. Engine data for the Larson SEi 180 Fish Series I/O 2006 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 23 gal and 23 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Larson LX 710 I/O 2011 is rated for 7 passengers, while the Larson SEi 180 Fish Series I/O 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LX 710 I/O 2011 could be the deciding factor.

Bottom line: Choose the Larson LX 710 I/O 2011 if your priority is putting more people on the water — it handles 7 passengers and at 17,1 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Fish Series I/O 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeLarson
MakeLarson
ModelLX 710 I/O
ModelSEi 180 Fish Series I/O
Model Year2011
Model Year2006
Measurements / Dimensions
Beam7 ft. 4 in. (2.24 m)
Beam7 ft. 9 in. (2.36 m)
Beam - Meters2.24
Beam - Meters2.36
Beam - Inches88
Beam - Inches93
Deadrise21°
Deadrise21℃
Draft [max] - Detail31 in. (79 cm)
Draft [max] - Detail31 in. (78.7 cm)
Draft [max] - Meters0.79
Draft [max] - Meters0.79
Draft [max] - Inches31
Draft [max] - Inches31
Weight - Detail2,040 lbs. (925 kg) with base engine
Weight - Detail2,650 lbs. (1,202 kg)
Weight - kg925.33
Weight - kg1202.02
Weight - lbs.204
Weight - lbs.265
Length - Feet17.08
Length - Feet17
Length overall - Detail17 ft. 1 in. (5.21 m)
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Meters5.21
Length overall - Meters5.33
Length overall - Inches205
Length overall - Inches21
Length - Metersnot available
Length - Meters5.33
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standardMerCruiser 3.0L WPS
Engine/s standardnot available
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal23
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeI/O
Horsepower135 hp
Horsepowernot available
Operational Info
Maximum capacity1,100 lbs. (499 kg)
Maximum capacity1,100 lbs. (499 kg)
Maximum people7
Maximum people6
Trailer Info
Trailer - DetailLX 3000 DB with swing tongue
Trailer - DetailSingle-axle EZ loader
Trailer - Length over all21 ft. 4 in. (6.5 m)
Trailer - Length over allnot available

Larson LX 710 I/O 2011 vs Larson SEi 180 Fish Series I/O 2006 — Common Questions

Which is the larger boat — the Larson LX 710 I/O 2011 or the Larson SEi 180 Fish Series I/O 2006?
The Larson LX 710 I/O 2011 is the longer of the two at 17,1 feet overall. The Larson SEi 180 Fish Series I/O 2006 comes in at 17,0 feet, making it roughly 0,1 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Larson LX 710 I/O 2011 or the Larson SEi 180 Fish Series I/O 2006?
For trailering, the Larson LX 710 I/O 2011 has the edge at 204 lbs dry weight versus 265 lbs for the Larson SEi 180 Fish Series I/O 2006. 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.
What is the maximum horsepower rating for these boats?
The Larson LX 710 I/O 2011 has a documented max rating of 135 hp. Engine specifications for the Larson SEi 180 Fish Series I/O 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Larson LX 710 I/O 2011 is Coast Guard rated for 7 passengers, while the Larson SEi 180 Fish Series I/O 2006 is certified for 6. 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 Larson SEi 180 Fish Series I/O 2006 measures 93" wide, compared to 88" for the Larson LX 710 I/O 2011. 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.
How do the fuel tanks compare on the Larson LX 710 I/O 2011 and Larson SEi 180 Fish Series I/O 2006?
Both boats carry similar fuel loads — 23 gallons and 23 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Larson LX 710 I/O 2011 and Larson SEi 180 Fish Series I/O 2006 from the same manufacturer?
Yes — both the Larson LX 710 I/O 2011 and the Larson SEi 180 Fish Series I/O 2006 are built by Larson. 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.