Cruisers
2008Boss Hoss BHC-9 ZZ4
21 fields on record
The 2008 Boss Hoss BHC-9 ZZ4 is an extreme custom cruiser powered by a massive 5.7-liter V8 engine producing 355 horsepower and 549 Nm of torque, making it one of the most powerful production motorcycles ever built. Designed for experienced riders seeking uncompromising performance and presence, it delivers raw acceleration and distinctive character through its automotive-derived powerplant. Best known for its jaw-dropping engine specification and highway dominance, the Boss Hoss appeals to enthusiasts prioritizing sheer performance over convention.
- Capacity
- 5733.0 ccm
- Engine
- V eight
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 680.4 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 355.0 HP (261.1 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a straight-line spectacle and boulevard showpiece, it exists to deliver massive V8 torque and presence rather than efficient transportation.
- Built for
- It has the soul of a hot-rod on two wheels, brash, thunderous, and built to intimidate with raw torque rather than finesse.
- Not ideal for
- It is not for new riders, tight urban commuting, or anyone seeking a nimble, corner-carving experience.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 5733.0 ccm
- Power
- 355.0 HP (261.1 kW)
- Torque
- 549.2 Nm (56.0 kgf-m)
- Engine type
- V eight
- Power/weight ratio
- 0.5218 HP/kg (dry)
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
Transmission
- Final drive
- Shaft
Dimensions & weight
- Wheelbase
- 2070 mm
- Dry weight
- 680.4 kg
- Ground clearance
- 165 mm
- Seat height
- Not on record - add it
Chassis & suspension
- Front suspension
- Inverted forks
- Rear suspension
- Dual 17´ coilover shocks, single 17.5 inch rebound damper
- Front wheel travel
- 89 mm
- Rake (fork angle)
- 35.0°
Brakes & wheels
- Front brakes
- Double disc. 4-piston calipers
- Rear brakes
- Single disc. 4-piston calipers
- Front tyre
- 130/90-16
- Rear tyre
- 275/60-15
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Boss Hoss BHC-9 ZZ4?
The 2008 Boss Hoss BHC-9 ZZ4 has a Capacity of 5733.0 ccm (349.85 cubic inches).
What engine power does the Boss Hoss BHC-9 ZZ4 have?
The 2008 Boss Hoss BHC-9 ZZ4 has a Power of 355.0 HP (261.1 kW).
What is the torque of the Boss Hoss BHC-9 ZZ4?
The 2008 Boss Hoss BHC-9 ZZ4 has a Torque of 549.2 Nm (56.0 kgf-m or 405.1 ft.lbs).
How much does the Boss Hoss BHC-9 ZZ4 weigh?
The 2008 Boss Hoss BHC-9 ZZ4 has a Dry weight of 680.4 kg (1500.0 pounds).
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