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Reciprocating internal combustion engine
2300 engine
Chevrolet Vega 2,300 cc (140 cu in) 1bbl. L4
Overview
Manufacturer
Chevrolet
Also called
Dura-Built 140
Production
1971-1977
Layout
Configuration
Naturally aspirated Straight-4
Displacement
2.3 L; 139.6 cu in (2,287 cc)
Cylinder bore
3.501 in (88.9 mm)
Piston stroke
3.625 in (92.1 mm)
Cylinder block material
Aluminum
Cylinder head material
Cast iron
Valvetrain
SOHC 2 valves x cyl.
Compression ratio
8.0:1
Combustion
Fuel system
Single or double barrel Carburetor
Fuel type
Gasoline
Oil system
Wet sump
Cooling system
Water-cooled
Output
Power output
70–110 hp (52–82 kW)
Torque output
107–138 lb⋅ft (145–187 N⋅m)
Chronology
Successor
GM Iron Duke engine
The Chevrolet 2300 is a 2.3 L; 139.6 cu in (2,287 cc) inline-four engine produced by the Chevrolet division of General Motors for the 1971 to 1977 model years of the Chevrolet Vega and Chevrolet Monza. This engine was also offered in the 1973-74 Pontiac Astre (Canada only), the 1975-77 Pontiac Astre (United States and Canada), the Pontiac Sunbird for 1976 only, and the Oldsmobile Starfire for 1976-77.
This engine featured a die-cast aluminum alloy cylinder block. The high-tech block features an alloy with 17 percent silicon. During the machining process, the cylinders were etched leaving the pure silicon particles exposed providing the piston wear surface, eliminating the need for iron cylinder liners. The block has cast iron main caps and a cast iron crankshaft. The engine's cylinder head is cast iron for lower cost, structural integrity and longer camshaft bearing life. The valvetrain features a direct-acting single overhead camshaft design.[1] The engine block and cylinder heads were cast at Massena Castings Plant in Massena, New York.
^(2005) Weird GM Engines, retrieved on 18 December 2008.
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