Four Winns H350 OB 2021 boat specs
Four Winns
Four Winns H350 OB 2021
2021
View full specs →
VS
Four Winns V378 2008 boat specs
Four Winns
Four Winns V378 2008
2008
View full specs →

Four Winns H350 OB 2021 vs Four Winns V378 2008 — Same Brand, Different Boat

The Four Winns H350 OB 2021 vs Four Winns V378 2008 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.

On paper these two are close siblings in the size department — Four Winns H350 OB 2021 at 35,0 ft versus Four Winns V378 2008 at 37,0 ft. Weight tells a clearer story for trailering families: the Four Winns H350 OB 2021 tips the scales at 13 300 lbs — 13 092 lbs more than the Four Winns V378 2008 at 208 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 800 hp, the Four Winns H350 OB 2021 has a 300-hp advantage over the Four Winns V378 2008's 500-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Four Winns H350 OB 2021 carries 17 gallons versus 3 gallons in the Four Winns V378 2008. 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 Four Winns V378 2008 is rated for 11 passengers, while the Four Winns H350 OB 2021 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Four Winns V378 2008 could be the deciding factor.

Bottom line: Choose the Four Winns V378 2008 if your priority is putting more people on the water — it handles 11 passengers and at 37,0 ft it has the deck room to back that rating up comfortably. The Four Winns H350 OB 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail35.00 ft
Length overall - Detail37 ft. 9 in. (11.51 m)
Length - Feet35
Length - Feet37
Length overall - Meters10.67
Length overall - Meters11.51
Length overall - Inches420
Length overall - Inches453
Beam10.10 ft
Beam12 ft. 9 in. (3.89 m)
Beam - Meters3.08
Beam - Meters3.89
Beam - Inches121
Beam - Inches153
Draft [max] - Detail3.50 ft
Draft [max] - Detail42 in. (107 cm)
Draft [max] - Meters1.07
Draft [max] - Meters1.07
Draft [max] - Inches42
Draft [max] - Inches42
Draft Min2.42 ft
Draft Minnot available
Displacement13300.00 lbs
Displacementnot available
Bridge clearance - Detailnot available
Bridge clearance - DetailWith Arch: 11 ft. 6 in. (3.51 m) excludes electronics
Bridge clearance - Metersnot available
Bridge clearance - Meters3.51
Bridge clearance - Inchesnot available
Bridge clearance - Inches138
Deadrisenot available
Deadrise19℃
Weight - Detailnot available
Weight - DetailWith Engine: 18,500 - 20,800 lbs. (8,390 - 9,440 kg)
Weight - kgnot available
Weight - kg9434.71
Weight - lbs.not available
Weight - lbs.208
Height - Detailnot available
Height - DetailWith Arch: 13 ft. 4 in. (4.07 m) excludes electronics
Height - Metersnot available
Height - Meters4.06
Height - Inchesnot available
Height - Inches16
Length - Metersnot available
Length - Meters11.51
Length - Inchesnot available
Length - Inches9
Length [over all with swim platform]not available
Length [over all with swim platform]41 ft. 3 in. (12.57 m)
Engine and Drivetrain
Fuel tank capacity - Gal17
Fuel tank capacity - Gal3
Fuel tank capacity - Liters643.52
Fuel tank capacity - Liters1135.62
Engine makeMercury Verado
Engine makenot available
Horsepower800 hp
Horsepowernot available
Fuel typeGas
Fuel typeGas or Diesel
Drive typeoutboard
Drive typeI/O - Twin
Engine 2 Engine MakeMercury Verado
Engine 2 Engine Makenot available
Engine 2 Horsepower800 hp
Engine 2 Horsepowernot available
Engine 2 Fuel TypeGas
Engine 2 Fuel Typenot available
Engine 2 Drive Typeoutboard
Engine 2 Drive Typenot available
Engine/s standardnot available
Engine/s standardVolvo Penta Twin 8.1 Gi 375 hp
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail300 gal. (1,136 l)
Engine maxnot available
Engine maxTwin 500 hp
Operational Info
Head1
Headnot available
Water capacity3
Water capacityPotable: 66 gal. (250 l) Gray: 45 gal. (170 l)
Boat typePower
Boat typenot available
Headroomnot available
HeadroomMaximum: 6 ft. 5 in. (1.96 m)
Water heater capacitynot available
Water heater capacity20 gal
Holding tank capacity - Detailnot available
Holding tank capacity - Detail42 gal. (159 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters158.99
Holding tank capacity - Galnot available
Holding tank capacity - Gal42
General Boat Info
Makenot available
MakeFour Winns
Modelnot available
ModelV378
Model Yearnot available
Model Year2008
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee

Four Winns H350 OB 2021 vs Four Winns V378 2008 — Common Questions

Which is the larger boat — the Four Winns H350 OB 2021 or the Four Winns V378 2008?
The Four Winns V378 2008 is the longer of the two at 37,0 feet overall. The Four Winns H350 OB 2021 comes in at 35,0 feet, making it roughly 2,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Four Winns H350 OB 2021 or the Four Winns V378 2008?
For trailering, the Four Winns V378 2008 has the edge at 208 lbs dry weight versus 13 300 lbs for the Four Winns H350 OB 2021. 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 Four Winns H350 OB 2021 is rated to a maximum of 800 hp, giving it the larger power ceiling. The Four Winns V378 2008 tops out at 500 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 Four Winns H350 OB 2021 is Coast Guard rated for 10 passengers, while the Four Winns V378 2008 is certified for 11. 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 Four Winns V378 2008 measures 153" wide, compared to 121" for the Four Winns H350 OB 2021. 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 Four Winns H350 OB 2021 or the Four Winns V378 2008?
The Four Winns H350 OB 2021 has the bigger tank at 17 gallons, versus 3 gallons on the Four Winns V378 2008. That 14-gallon difference translates to roughly 42–70 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Four Winns H350 OB 2021 and Four Winns V378 2008 from the same manufacturer?
Yes — both the Four Winns H350 OB 2021 and the Four Winns V378 2008 are built by Four Winns. 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.