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55 Eastbay SX
About the 55 Eastbay SX
Our passion for building the best-performing, most enduring and alluring boats has reached new heights with the 55SX: New heights of luxury in a restyled, dual-stateroom layout with large master and equally spacious VIP cabin. New heights of style, from her powered sunroof down to a granite-topped galley. Of comfort, with more seating, a large bar and entertainment center, and a separate raised dinette. And power, with engine options up to twin 1,015 hp diesels and top speeds over 30 knots.

Built on the acclaimed Eastbay Series hull designed by C.R. Hunt Associates, the 55 Eastbay is available as an enclosed-salon 'SX' model and now as as a flybridge-topped 'FB' model.

SPECIFICATIONS   FEATURES   GALLERY   DECKPLANS  
55 Eastbay SX Specifications 55 Eastbay SX Aft View
Specifications & Volumes
Max Length
Length Overall
Length Waterline
Max Beam
Max Draft
Height (to house top)
Height (to mast top)
Displacement (half ld)
Water Tank Capacity
Fuel Tank Capacity
Black Tank Capacity

59'10"
55'1"
50'10"
16'4"
4'10"
12'7"
16'2"
63,300 lbs
180 US gals
1,000 US gals
68 US gals
18.24m
16.79m
15.49m
4.98m
1.47m
3.84m
4.93m
28,713 kg
681 liters
3,785 liters
257 liters
Power Options
Power Options
STANDARD ENGINES
Twin Cat
Max Speed
Cruise Speed

OPTIONAL ENGINES
Twin Cat
  Max Speed
  Cruise Speed
Twin MTU


C18 ACERT - 885 mhp
30.24 kn @ 2,223 RPM
24.66 kn @ 1,900 RPM


C-18 ACERT - 1,015 mhp
33.10 kn @ 2,346 RPM
26.30 kn @ 2,000 RPM
S60 - 836 mhp
*speeds approximated
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© 2011 Grand Banks Yachts, Ltd.
Images on this site may show options, equipment or other features not available on current models. Please contact your Authorized Dealer for most current and accurate specifications and information.