Chaparral 180 SSi Sportboat 2004 boat specs
Chaparral
Chaparral 180 SSi Sportboat 2004
2004
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VS
Chaparral Signature 270  2010 boat specs
Chaparral
Chaparral Signature 270 2010
2010
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Chaparral 180 SSi Sportboat 2004 vs Chaparral Signature 270 2010 — Same Brand, Different Boat

Matching a modified vee Chaparral 180 SSi Sportboat 2004 against a deep vee Chaparral Signature 270 2010 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

The power gap is worth calling out. Rated to 400 hp, the Chaparral Signature 270 2010 has a 145-hp advantage over the Chaparral 180 SSi Sportboat 2004's 255-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Chaparral 180 SSi Sportboat 2004 carries 21 gallons versus 8 gallons in the Chaparral Signature 270 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Chaparral 180 SSi Sportboat 2004 is rated for up to 8 people. Passenger data for the Chaparral Signature 270 2010 wasn't available.

Bottom line: Performance buyers should lean toward the Chaparral Signature 270 2010 and its 400-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Chaparral 180 SSi Sportboat 2004 with its 255-hp rating is the more economical daily driver.
General Boat Info
MakeChaparral
MakeChaparral
Model180 SSi Sportboat
ModelSignature 27
Model Year2004
Model Year201
Measurements / Dimensions
Beam7 ft. 2 in. (2.18 m)
Beam8 ft. 6 in. (2.59 m)
Beam - Meters2.18
Beam - Meters2.59
Beam - Inches86
Beam - Inches102
Bridge clearance - Detail4 ft. 4 in. (1.32 m)
Bridge clearance - DetailWith Arch: 9 ft. 1 in. (2.77 m) Without Arch: 6 ft. 7 in. (2.01 m)
Bridge clearance - Meters1.32
Bridge clearance - Meters2.77
Bridge clearance - Inches52
Bridge clearance - Inches109
Deadrise20℃
Deadrise20℃
Draft [drive up] - Detail7 in. (43 cm)
Draft [drive up] - Detail17 in. (43 cm)
Draft [drive up] meters0.18
Draft [drive up] meters0.43
Draft [drive up] inches7
Draft [drive up] inches17
Draft [max] - Detail36 in. (91 cm)
Draft [max] - Detail33 in. (84 cm)
Draft [max] - Meters0.91
Draft [max] - Meters0.84
Draft [max] - Inches36
Draft [max] - Inches33
Weight - Detail2,100 lbs. (953 kg)
Weight - Detail6,900 lbs. (3,130 kg)
Weight - kg952.54
Weight - kg3129.78
Weight - lbs.21
Weight - lbs.69
Length [over all with swim platform]18 ft. 3 in. (5.56 m)
Length [over all with swim platform]27 ft. (8.23 m)
Length - Feetnot available
Length - Feet27
Body / Hull
Hull typeModified Vee
Hull typeDeep Vee
Hull materialnot available
Hull materialFiberglass
Engine and Drivetrain
Engine/s standard135 hp
Engine/s standardnot available
Fuel tank capacity - Detail21 gal. (79 l)
Fuel tank capacity - Detail80 gal. (303 l)
Fuel tank capacity - Liters79.49
Fuel tank capacity - Liters302.83
Fuel tank capacity - Gal21
Fuel tank capacity - Gal8
Engine max255 hp (168 kw)
Engine max400 hp (298 kW)
Fuel typenot available
Fuel typeGas or Diesel
Drive typenot available
Drive typeI/O
Operational Info
Maximum people8
Maximum peopleYacht certified
Headroomnot available
Headroom6 ft. 2 in. (1.88 m)
Sleeping capacitynot available
Sleeping capacity4
Water capacitynot available
Water capacity22 gal. (83 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail3.8 gal. (14 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters15.14
Holding tank capacity - Galnot available
Holding tank capacity - Gal3.8

Chaparral 180 SSi Sportboat 2004 vs Chaparral Signature 270 2010 — Common Questions

Which is easier to trailer — the Chaparral 180 SSi Sportboat 2004 or the Chaparral Signature 270 2010?
For trailering, the Chaparral 180 SSi Sportboat 2004 has the edge at 21 lbs dry weight versus 69 lbs for the Chaparral Signature 270 2010. 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 Chaparral Signature 270 2010 is rated to a maximum of 400 hp, giving it the larger power ceiling. The Chaparral 180 SSi Sportboat 2004 tops out at 255 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 Chaparral 180 SSi Sportboat 2004 carry?
The Chaparral 180 SSi Sportboat 2004 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 Chaparral Signature 270 2010 measures 102" wide, compared to 86" for the Chaparral 180 SSi Sportboat 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 Chaparral 180 SSi Sportboat 2004 or the Chaparral Signature 270 2010?
The Chaparral 180 SSi Sportboat 2004 has the bigger tank at 21 gallons, versus 8 gallons on the Chaparral Signature 270 2010. That 13-gallon difference translates to roughly 39–65 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Chaparral 180 SSi Sportboat 2004 and Chaparral Signature 270 2010 from the same manufacturer?
Yes — both the Chaparral 180 SSi Sportboat 2004 and the Chaparral Signature 270 2010 are built by Chaparral. 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.