Austin-Healey 161ci Specs: 79.4 x 88.9 mm

Austin-Healey 161ci specs: 79.4 x 88.9 mm (3.1248 x 3.5000 in) bore and stroke. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	161 ci
Cylinders	6
Bore	3.125"
Stroke	3.500"
Years	1957–1959

This engine

Engine	Displacement	Bore × Stroke	CR	HP
C-Series 2.6	161 ci	3.1248" × 3.5"	—	—

Factory cars with a Austin-Healey 161ci

• Austin-Healey Austin-Healey 100 / 3000: 1957; 1958; 1959

What varies across the family

This family is represented by a single engine in the database: 161 ci, 6 cylinders, a 3.1248" × 3.5" 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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