Nitro 640 LX 2004 boat specs
Nitro
Nitro 640 LX 2004
2004
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Nitro Z-7 2010 boat specs
Nitro
Nitro Z-7 2010
2010
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Nitro 640 LX 2004 vs Nitro Z-7 2010 — Same Brand, Different Boat

The Nitro 640 LX 2004 vs Nitro Z-7 2010 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 200 hp, the Nitro Z-7 2010 has a 110-hp advantage over the Nitro 640 LX 2004's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Nitro Z-7 2010 carries 45 gallons versus 24 gallons in the Nitro 640 LX 2004. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 4 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Nitro Z-7 2010 and its 200-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Nitro 640 LX 2004 with its 90-hp rating is the more economical daily driver.
General Boat Info
MakeNitro
MakeNitro
Model640 LX
ModelZ-7
Model Year2004
Model Year201
Measurements / Dimensions
Beam84 in
Beam94 in
Beam - Meters2.13
Beam - Meters2.39
Beam - Inches84
Beam - Inches94
Weight - Detail1092 lbs
Weight - Detail1,650 lbs
Weight - kg495.32
Weight - kg748.43
Weight - lbs.1092
Weight - lbs.165
Height [transom]21.5 in
Height [transom]not available
Length overall - Detail16 ft. 4 in
Length overall - Detail18.67 ft
Length overall - Meters4.98
Length overall - Meters5.69
Length overall - Inches196
Length overall - Inches224.04
Deadrisenot available
Deadrise16°
Draft [max] - Detailnot available
Draft [max] - Detail15 in
Draft [max] - Metersnot available
Draft [max] - Meters0.38
Draft [max] - Inchesnot available
Draft [max] - Inches15
Width [transom] - Detailnot available
Width [transom] - Detail22 in
Length - Feetnot available
Length - Feet18.67
Engine and Drivetrain
Fuel tank capacity - Detail24 Gallons
Fuel tank capacity - Detail45 gal
Fuel tank capacity - Liters90.85
Fuel tank capacity - Liters170.34
Fuel tank capacity - Gal24
Fuel tank capacity - Gal45
Engine max90 hp
Engine max200 hp
Engine/s standardnot available
Engine/s standardMercury? 150 OptiMax®
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum capacity1080 lbs
Maximum capacity1,390 lbs
Maximum people4
Maximum people4 / 600 lbs
Body / Hull
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Trailer Info
Trailer - Detailnot available
Trailer - DetailNITRO? color coordinated single axle drive-on
Trailer - Length over allnot available
Trailer - Length over allWith swing-away: 21 ft. 9 in
Trailer - Weightnot available
Trailer - Weight3,000 lbs
Trailer - Widthnot available
Trailer - Width8 ft. 6 in

Nitro 640 LX 2004 vs Nitro Z-7 2010 — Common Questions

Which is easier to trailer — the Nitro 640 LX 2004 or the Nitro Z-7 2010?
For trailering, the Nitro Z-7 2010 has the edge at 165 lbs dry weight versus 1 092 lbs for the Nitro 640 LX 2004. 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 Nitro Z-7 2010 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Nitro 640 LX 2004 tops out at 90 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 Nitro 640 LX 2004 is Coast Guard rated for 4 passengers, while the Nitro Z-7 2010 is certified for 4. 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 Nitro Z-7 2010 measures 94" wide, compared to 84" for the Nitro 640 LX 2004. 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 Nitro 640 LX 2004 or the Nitro Z-7 2010?
The Nitro Z-7 2010 has the bigger tank at 45 gallons, versus 24 gallons on the Nitro 640 LX 2004. That 21-gallon difference translates to roughly 63–105 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Nitro 640 LX 2004 and Nitro Z-7 2010 from the same manufacturer?
Yes — both the Nitro 640 LX 2004 and the Nitro Z-7 2010 are built by Nitro. 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.