Briggs & Stratton Vanguard Big Block V-Twin

The Briggs & Stratton Vanguard Big Block V-Twin is a series of American piston engines, designed and produced by Briggs & Stratton of Wauwatosa, Wisconsin for use in commercial applications. They have also been adapted for use as ultralight aircraft engines.

Design and development
The engine is a V-twin four-stroke, 895 cc or 993 cc displacement, fan-driven air-cooled, gasoline engine design. The larger displacement is achieved by increasing the stroke from 78 to 87 mm, but using the same bore of 86 mm. In aviation applications it is used as a direct drive engine, turning a propeller without a reduction drive. It employs a single electronic ignition system and produces 25 to 37 hp at 3600 rpm.

Variants

 * Vanguard Big Block V-Twin 895cc
 * Model with 895 cc displacement, bore of 86 mm, a stroke of 78 mm and a power output of 25 to 33 hp at 3600 rpm


 * Vanguard Big Block V-Twin 993cc
 * Model with 993 cc displacement, bore of 86 mm, a stroke of 87 mm and a power output of 33 to 37 hp at 3600 rpm

Applications

 * Bautek Skycruiser
 * Parazoom Trio-Star Delta
 * Spacek SD-1 Minisport