School Transportation News Magazine | Buyer’s Guide 2021
DATA, STATISTICS AND TRENDS GENERAL MOTORS
Engine Type: Express/Savana 6.6L V8 Fuel Type: Regular Gasoline (87 Octane) Displacement: 6554 cc (400 CI) Engine Orientation: Longitudinal Compression Ratio: 10.8:1 Valve Configuration: Overhead Valves Vales Per Cylinder: Two Valve Lifters: Hydraulic Roller Firing Order: 1-8-7-2-6-5-4-3
Bore X Stroke: 103.25 x 98.0 mm Horsepower: 401 hp (299 kW) @ 5200 rpm* Torque: 464 lb-ft (629 Nm) @ 4000 rpm* Maximum Engine Speed: 5600 rpm Emissions Control: Catalytic Converter, Three-way catalyst, Positive Crankcase Ventilation
*As tested in Chevrolet Silverado HD
Engine Type: LV1 4.3L V6 Engine Type: Overhead Valves with Variable Valve Timing Fuel Type: Gasoline with Direct Injection Displacement: 262.4 (4.3) Compression Ratio: 11.0:1
Bore & Stroke: 3.92 x 3.62 (9.96 x 9.20) Horsepower: 276 @ 5,200 rpm Torque: 298 @ 3,900 rpm Engine Architecture: Aluminum block casting Engine Dry Weight: 405 lbs
POWER SOLUTIONS INTERNATIONAL
Engine Type: PSI 8.8L Gasoline Cylinders: V8 Induction System: Naturally Aspirated Combustion System: Spark-ignited Displacement: 535 cid (8.767 L) Compression Ratio: 9.1:1 Emissions Certification: EPA & CARB Direction of Rotation: Clockwise From Front Dry Weight: 748 lbs (339 kg) Bore & Stroke: 4.35 in x 4.50 in (110.5 mm x 114.3 mm)
Engine Type: PSI 8.8L Propane Cylinders: V8 Induction System: Naturally Aspirated Combustion System: Spark-ignited Displacement: 535 cid (8.767 L) Compression Ratio: 10.1:1 Emissions Certification: EPA & CARB Direction of Rotation: Clockwise From Front
ROUSH CLEANTECH
Engine Type: 7.3L V8 Fuel Type: Gasoline, Propane Aspiration: Natural Displacement: 445/7293 Compression Ratio: 10.5:1 Bore & Stroke (in.): 4.21 x 3.98 Horsepower (hp @ rpm): 350 @ 3,900 Torque (ft-lbs @ rpm): 468 @ 3,900 Engine Architecture: V8 Configuration: OHV Fuel Injection: Port
Rated Power: 265 hp (197.6 kw) Rated Torque: 548 lb-ft (743 nm) Cooling System: Water-cooled Engine Coolant Capacity: 16 qts Engine Oil Capacity: 7.0 qts (6.62 L) Engine Oil Capacity (with filter): 7.5 qts (7.10 L)
Dry Weight: 748 lbs (339 kg) Bore & Stroke: 4.35 in x 4.50 in (110.5 mm x 114.3 mm) Rated Power: 270 hp (201 kw) Rated Torque: 565 lb-ft (766 nm) Cooling System: Water-cooled Engine Coolant Capacity: 16 qts Engine Oil Capacity: 7.0 qts (6.62 L) Engine Oil Capacity (with filter): 7.5 qts (7.10 L)
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