Mitsubishi 159ci Specs: 91.1 x 98 mm

Mitsubishi 159ci specs: 91.1 x 98 mm (3.5866 x 3.8583 in) bore and stroke. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	159 ci
Cylinders	4
Bore	3.587"
Stroke	3.858"
Compression	7.0:1
Advertised power	145–176 hp
Years	1983–1990

This engine

Engine	Displacement	Bore × Stroke	CR	HP
G54B	159 ci	3.5866" × 3.8583"	7:1	145–176

Factory cars with a Mitsubishi 159ci

• Mitsubishi Montero: 1983, G54B; 1984, G54B; 1985, G54B; 1986, G54B; 1987, G54B; 1988, G54B; 1989, G54B; 1990, G54B
• Mitsubishi Starion: 1983, G54B, 145 hp; 1984, G54B; 1985, G54B; 1986, G54B, 176 hp; 1987, G54B, 176 hp; 1988, G54B; 1989, G54B

What varies across the family

This family is represented by a single engine in the database: 159 ci, 4 cylinders, a 3.5866" × 3.8583" bore and stroke.

All are undersquare — stroke larger than bore, favouring torque low in the range.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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