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BMC A-series engine

The Austin Motor Company A-series is a British small straight-4 automobile engine. Launched in 1951 with the Austin A30, production lasted until 2000 in the Mini. It used a cast-iron block and cylinder head, and a steel crankshaft with three main... Wikipedia

Compression ratio: 7.5:1, 8.3:1, 8.5:1, 8.8:1, 9.4:1, 10.5:1, 23.6:1 (Diesel)

Cooling system: Water-cooled

Cylinder block material: Cast iron

Cylinder bore: 57.92 mm (2.280 in); 62.43 mm (2.458 in); 62.9 mm (2.48 in); 64.58 mm (2.543 in); 70.6 mm (2.78 in)

Displacement: 803–1,275 cc (49.0–77.8 cu in)

Emissions target standard: Euro 3 (MPi engine)