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Performance Bulletin


Engine: Yamaha F350XSA4 / F350USA4 / LF350XSA4
Boat: Grady White Express 340
Configuration: Triple
Test Date: 19-Aug-2025
Grady White® - Grady White Express 340

Performance Bulletin

69 - Grady White Express 340

Grady White Express 340

Length 33' 6"
Beam 11' 7"
Dry Weight (Boat Mfr. Pub) 12,360 lbs
Maximum HP 1,050 hp
Fuel Capacity 340 gal
Weight as Tested 17,485 lbs

F350XSA4 / F350USA4 / LF350XSA4

Horsepower 350 hp
Induction EFI/VCT/DOHC
Displacement 4.3L
Weight (Estimated) 629 - 642 - 629 lbs
Gear Ratio 1.75:1

Engine Mounting Height

Mounting Hole Position #3

Propeller(s)

Series Saltwater Series II
Diameter x Pitch 15 x 20
Yamaha Part # 6CE-45932-20-00 / 6CF-45932-20-00 / 6CE-45932-20-00
Propeller Material Stainless Steel

Test Conditions

Number of People 3
Air / Water Temperature (Fahrenheit) 79° F / 80° F
Elevation (in feet above sea level) 0'
Wind Velocity 5-10 MPH

Comments

Test weight includes 170 gallons of fuel, 4 batteries, Seakeeper, refrigerator, grill, safety and test equipment.

YPB#: PB_GRW_EXPRESS 340_TR_F350XSA4_8-19-2025_ODC

Grady White® - Grady White Express 340

Performance Bulletin


Engine: Yamaha F350XSA4 / F350USA4 / LF350XSA4
Boat: Grady White Express 340
Configuration: Triple
Test Date: 19-Aug-2025
F350XSA4 / F350USA4 / LF350XSA4

Performance Data

RPM
MPH
GPH
MPG
1000 6.3 3.8 1.67
1500 8.6 6.3 1.38
2000 10.3 10.5 0.98
2500 12.4 17.6 0.70
3000 17.7 23.2 0.76
3500 30.4 27.2 1.12
4000 37.1 35.7 1.04
4500 42.6 44.0 0.97
5000 48.1 58.2 0.83
5500 53.5 81.9 0.65
5950 57.2 91.5 0.63

0-30 MPH: 8.86 seconds

Notice To Consumer The information and data contained in this Performance Bulletin is approximate and subject to many different factors and variables. It is provided as a guideline only and should not be relied upon as representative of actual performance. Your boat’s performance may be different than the information contained in this Performance Bulletin due to various factors, including your boat’s actual weight, wind and water conditions, temperature, humidity, elevation, bottom paint, boat options affecting wind/water drag and/or boat weight, and operator ability. Please confirm the specifications and performance data on your specific boat/engine combination with your dealer prior to purchase. Please also keep in mind that the data contained in this Performance Bulletin may or may not have been performed using Yamaha PowerMatched components. Yamaha reserves the right to change the specifications and performance data of this Performance Bulletin or engine without notice. This document contains many of Yamaha’s valuable trademarks. It may also contain trademarks belonging to other companies. Any references to other companies or their products are for identification purposes only, and are not intended to be an endorsement.