Boss Hoss BHC-3: a Chevrolet V8 in a motorcycle frame

BOSS HOSS

Boss Hoss with a 6.2-litre V8
A Boss Hoss with the 6.2-litre V8. Photo by JoachimKohler-HB, CC BY-SA 4.0 via Wikimedia Commons.

The Boss Hoss BHC-3 is the cruiser on which an American firm from Dyersburg, Tennessee, built its reputation: a motorcycle wrapped around a Chevrolet V8 car engine. Buyers could choose the engine, and with it the character of the bike, from the 5.7-litre ZZ4 to the 8.2-litre 502 and the later LS-series units.

Boss Hoss BHC-3 at a glance

Boss Hoss BHC-3 key facts
Maker Boss Hoss Cycles, Dyersburg, Tennessee, USA
Founded 1990, by Monte Warne
Engine Chevrolet V8, 376–496 cu in (6.2–8.1 litres)
Small-block option 5.7-litre ZZ4, 355 hp
Big-block option 8,230 cc (502 cu in), 502 hp
Later option BHC-3 LS3, the largest-displacement motorcycle according to the French Wikipedia
Gearbox semi-automatic two-speed with reverse, second gear an overdrive
Engine weight over 250 kg on its own
Machine weight sometimes over 500 kg
Price in Germany €45,800 (5,700 cc) to €75,500 (8,200 cc)
Built about 300 vehicles a year by the mid-1990s; more than 4,000 sold by 2006

The English article on the company is short, so the page also uses the German and French articles, which give the engine options by name. The individual BHC-3 versions have no Wikipedia articles of their own.

History of the Boss Hoss BHC-3

From Boss Hog to Boss Hoss

Monte Warne founded the company in 1990 in Dyersburg, Tennessee. Its first machines were shown at bike shows under the name Boss Hog, but Harley-Davidson holds the H.O.G. name in the United States for its Harley Owners Group, and Warne was ordered to change it. The name had already become known, so in the middle of 1991 the firm settled on the closest alternative, Boss Hoss.

Boss Hoss V8 motorcycle
Boss Hoss V8 motorcycle. Photo by Larry Grubbs, CC BY 2.0 via Wikimedia Commons.

A factory of hand-built machines

What began as Warne’s small shop grew into a works of 770 square metres where the motorcycles are still largely assembled by hand. The frames are built around Chevrolet eight-cylinder car engines rather than motorcycle units, which is what separates a Boss Hoss from any conventional cruiser. By the mid-1990s the company was selling roughly 300 vehicles a year, and by 2006 it had delivered more than 4,000.

Choosing an engine

The BHC-3 was offered with a range of Chevrolet V8s. The French Wikipedia names the 5.7-litre (350 cu in) ZZ4 with 355 hp at one end and the 8,230 cc (502 cu in) unit with 502 hp at the other, and calls the BHC-3 LS3 the largest-displacement motorcycle on the market. Displacement across the range ran from 376 to 496 cu in, or 6,160 to 8,130 cc.

How it rides

The engine drives through a torque converter to a semi-automatic two-speed gearbox with reverse, the second gear being an overdrive. The mass of the machine has a damping effect on vibration, and combined with eight cylinders and the very tall gearing it produces what has been described as vibration-free acceleration. The engine alone weighs more than 250 kg, and a complete machine can exceed 500 kg, yet the low centre of gravity means that in practice it handles much like any other heavy cruiser.

Design and features

  • Chevrolet V8 power: a car engine in a motorcycle frame, from 5.7 to 8.2 litres.
  • Semi-automatic transmission: a torque converter and two speeds, with reverse and an overdrive second gear.
  • Hand assembly: the motorcycles are built largely by hand in a 770-square-metre works.
  • Weight as a virtue: the mass damps vibration and settles the ride, while the low centre of gravity keeps the machine manageable.

Boss Hoss BHC-3 versions

  • BHC-3 ZZ4: the 5.7-litre (350 cu in) small-block version with 355 hp.
  • BHC-3 502: the 8,230 cc big-block version with 502 hp.
  • BHC-3 LS3: the later LS-series engine, described by the French Wikipedia as the largest-displacement motorcycle.
  • BHC-3 LS2: another LS-series engine option from the same line.

Boss Hoss also builds three-wheelers, described in the article on the Boss Hoss Trike. More machines from the firm are in the Boss Hoss collection.

Video: BOSS HOSS BHC-3 LS

Video on YouTube.

Sources