Four Winns H350 OB 2021 boat specs
Four Winns
Four Winns H350 OB 2021
2021
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VS
Four Winns HD8 OB RS 2021 boat specs
Four Winns
Four Winns HD8 OB RS 2021
2021
View full specs →

Four Winns H350 OB 2021 vs Four Winns HD8 OB RS 2021 — Same Brand, Different Boat

The Four Winns H350 OB 2021 vs Four Winns HD8 OB RS 2021 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 800 hp, the Four Winns H350 OB 2021 has a 550-hp advantage over the Four Winns HD8 OB RS 2021'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 Four Winns H350 OB 2021 carries 17 gallons versus 7 gallons in the Four Winns HD8 OB RS 2021. 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 H350 OB 2021 is rated for 10 passengers, while the Four Winns HD8 OB RS 2021 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Four Winns H350 OB 2021 could be the deciding factor.

Bottom line: Choose the Four Winns H350 OB 2021 if your priority is putting more people on the water — it handles 10 passengers and at 35,0 ft it has the deck room to back that rating up comfortably. The Four Winns HD8 OB RS 2021 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 - Detail35.00 ft
Length overall - Detail26.70 ft
Length - Feet35
Length - Feet26.7
Length overall - Meters10.67
Length overall - Meters8.14
Length overall - Inches420
Length overall - Inches320
Beam10.10 ft
Beam8.50 ft
Beam - Meters3.08
Beam - Meters2.59
Beam - Inches121
Beam - Inches102
Draft [max] - Detail3.50 ft
Draft [max] - Detail2.10 ft
Draft [max] - Meters1.07
Draft [max] - Meters0.64
Draft [max] - Inches42
Draft [max] - Inches25
Draft Min2.42 ft
Draft Minnot available
Displacement13300.00 lbs
Displacementnot available
Engine and Drivetrain
Fuel tank capacity - Gal17
Fuel tank capacity - Gal7
Fuel tank capacity - Liters643.52
Fuel tank capacity - Liters264.98
Engine makeMercury Verado
Engine makeMercury
Horsepower800 hp
Horsepower250 hp
Fuel typeGas
Fuel typeGas
Drive typeoutboard
Drive typenot available
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 modelnot available
Engine model250XL Verado
Operational Info
Head1
Headnot available
Water capacity3
Water capacity12
Boat typePower
Boat typePower

Four Winns H350 OB 2021 vs Four Winns HD8 OB RS 2021 — Common Questions

Which is the larger boat — the Four Winns H350 OB 2021 or the Four Winns HD8 OB RS 2021?
The Four Winns H350 OB 2021 is the longer of the two at 35,0 feet overall. The Four Winns HD8 OB RS 2021 comes in at 26,7 feet, making it roughly 8,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
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 HD8 OB RS 2021 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 Four Winns H350 OB 2021 is Coast Guard rated for 10 passengers, while the Four Winns HD8 OB RS 2021 is certified for 8. 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 H350 OB 2021 measures 121" wide, compared to 102" for the Four Winns HD8 OB RS 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 HD8 OB RS 2021?
The Four Winns H350 OB 2021 has the bigger tank at 17 gallons, versus 7 gallons on the Four Winns HD8 OB RS 2021. That 10-gallon difference translates to roughly 30–50 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Four Winns H350 OB 2021 and Four Winns HD8 OB RS 2021 from the same manufacturer?
Yes — both the Four Winns H350 OB 2021 and the Four Winns HD8 OB RS 2021 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.