31 Gross HP* H/S Air Cooled V-Twin Big Block Horizontal Shaft

Vanguard™ is the proven industry standard for BIG BLOCK™ engine power, performance and reliability. For the most challenging applications—where downtime is not an option—this BIG BLOCK has been expertly engineered to deliver the dependability people need to get a lot more done in less time throughout the workday.

Typical applications for this high-performance Vanguard™ engine include: Concrete Trowels, Chipper/Shredder, Commercial Mowers and Mudboats

Features	Benefits
Engine Warranty	New 3 year global commercial engine warranty

Engine Dimensions
Length x Width x Height	14.92in (379mm) x 19.53in (496mm) x 28.54in (725mm)
Weight	125lbs (56.7kg)
Fuel Tank Capacity	3.5qt
Oil Capacity	77.8oz (2.3L)
Engine Displacement (cc)	896 cc (54.68 cu in)

Engine Specifications
Gross Horsepower*	31
Engine Displacement (cc)	896 cc (54.68 cu in)
Number of Cylinders	Two
Engine Configuration	Horizontal
Bore	3.37in (86mm)
Stroke	3.07in (78mm)
Compression Ratio	8.2:1
Ignition System	Magnetron®
Lubrication System	Full Pressure w/ Spin On Oil Filter
Carburetor	Two Barrel Float Feed
Engine Cooling	Air
Engine Fuel	Gasoline or Gaseous
Governor	Mechanical
PTO (Standard)	1" SAE Keyway
Cylinder Block	Aluminum Alloy with Dura-Bore Cast Iron Sleeve
Crankshaft	Ductile Iron
PTO Shaft Rotation	Counterclockwise from PTO Side
Starter	Industrial Grade Solenoid Shift Electric
EPA Compliant Engine	Yes

Tapered Crankshaft
Threaded Crankshaft
CARB Compliant
Oil Pressure Switch
Oil Cooler
Alternator (20, 20-50)
Key Switch
Straight Key Crankshaft (1.125 in, 1.437 in)
Speed Sensor
Low Profile Air Cleaner
High, Low and Side Mount Mufflers

*All power levels are stated horsepower per SAE J1940 as rated by Briggs & Stratton.