The 5.7L L31 is the premier industrial workhorse, providing the power needed to get the job done without sacrificing fuel efficiency or durability.

5.7L L31 Features & Specifications

5.7L L31 Tech Specs
Type 5.7L V-8 Gen 1e Small Block
Displacement 5736 cc
Engine Orientation Longitudinal
Compression Ratio 9.4:1
Valve Configuration Overhead valves (2 valves per cylinder)
Assembly Sites Toluca, Mexico
Valve Lifters Hydraulic roller
Firing Order 1 – 8 – 4 – 3 – 6 – 5 – 7 – 2
Bore x Stroke 101.60 x 88.39 mm
Fuel System None
Fuel Type LP & CNG
Horsepower: 216 hp (161 kW) @ 4000 rpm (LP)
196 hp (146 kW) @ 4000 rpm (CNG)
Torque: 308 lb-ft (418 Nm) @ 1400 rpm (LP)
283 lb-ft (384 Nm) @ 1600 rpm (CNG)
Fuel Shutoff N/A
Shipping Weight 432 lb (196 kg)
Emissions Controls Positive crankcase ventilation
Block Cast Iron GM232-M
Cylinder Head Cast iron
Intake Manifold None
Exhaust Manifold None
Main Bearing Caps Cast iron GM232-M
Crankshaft Nodular Iron
Camshaft 5150 steel billet
Connecting Rods Forged - SAE 1141