Boss Hoss BHC-9 ZZ4 - 2008 Specifications and Reviews
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.
2008
General information | |
| Category | Custom / cruiser |
| Year | 2008 |
| Model | Boss Hoss BHC-9 ZZ4 |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Cooling system | Liquid |
| Starter | Electric |
| Fuel system | Injection. Holly 680 cfm Throttle Body |
| Torque | 549.18 |
| Power | 355.00 |
| Stroke | 4 |
| Engine type | V8 |
| Capacity: | 5700.00 ccm (347.81 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 2,070 mm (81.5 inches) |
| Ground clearance | 165 mm (6.5 inches) |
| Dry weight | 680.4 kg (1,500.0 pounds) |
| | |
Boss Hoss BHC-9 ZZ4 dimensions and frame | |
| Rear brakes | Single disc. 4-piston calipers |
| Front brakes | Double disc. 4-piston calipers |
| Rear tyre dimensions | 275/60-15 |
| Front tyre dimensions | 130/90-16 |
| Rear suspension | Dual 17´ coilover shocks, single 17.5 inch rebound damper |
| Front suspension travel | 89 mm (3.5 inches) |
| Front suspension | Inverted forks |
| Rake (fork angle) | 35.0° |
| | |
Speed and acceleration | |
| Power/weight ratio | 0.5218 HP/kg |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
355 hp
Peak Power
3.8s
0-60 mph
Best For
Track15%
City20%
Cornering15%
Daily Riding35%
Touring45%
Passenger55%
Rider Profile
| Best For | This is a machine for confident, experienced riders who want to master a genuinely unconventional, car-engined motorcycle rather than a typical cruiser. |
| Purpose | Built as a straight-line spectacle and boulevard showpiece, it exists to deliver massive V8 torque and presence rather than efficient transportation. |
| Rider Fit | Its huge dry weight and long wheelbase demand strength and deliberate low-speed handling skills, especially at parking-lot speeds and stops. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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