Triumph 79ci Specs: 73.7 x 76 mm

Triumph 79ci specs: 73.7 x 76 mm (2.9000 x 2.9920 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings.

At a glance

Displacement	79 ci
Cylinders	4
Bore	2.900"
Stroke	2.992"
Compression	8.5:1
Advertised power	75 hp
Years	1967–1972

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
FD / FE	79 ci	2.9" × 2.992"	—	75
FH / FK	79 ci	2.9" × 2.992"	8.5:1	—

Factory cars with a Triumph 79ci

• Triumph Spitfire: 1967, FD / FE, 75 hp; 1968, FD / FE; 1969, FD / FE; 1970, FD / FE; 1971, FH / FK; 1972, FH / FK

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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