Ford 170ci Specs: 3.50 x 2.94 in

Ford 170ci specs: 3.50 x 2.94 in (88.9 x 74.7 mm) bore and stroke, shared by all 4 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	170 ci
Cylinders	6
Bore	3.500"
Stroke	2.940"
Compression	9.9:1
Advertised power	82–105 hp
Years	1962–1974
Cylinder head data	1 of 4 engines

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
1974 170 105HP	170 ci	3.5" × 2.94"	9.872:1	105
170 Six	170 ci	3.5" × 2.94"	—	100–105
U-code	170 ci	3.5" × 2.94"	—	82–105
Ford 170ci (1964–1969)	170 ci	3.5" × 2.94"	—	100–105

Factory cars with a Ford 170ci

• Ford Falcon: 1961, 101 hp; 1962, 101 hp; 1963, 101 hp; 1964, 101 hp; 1965, 105 hp; 1966, 105 hp; 1967, 105 hp; 1968, 100 hp; 1969, 100 hp
• Ford Fairlane: 1962, U-code, 101 hp; 1963, U-code, 101 hp; 1964, U-code, 101 hp
• Ford Mustang: 1964, U-code, 101 hp
• Ford Bronco: 1966, 105 hp; 1967, 105 hp; 1968; 1969; 1970; 1971, 100 hp; 1972
• Ford Maverick: 1970, U-code, 105 hp; 1971, U-code, 100 hp; 1972, U-code, 82 hp

What varies across the family

All are oversquare — bore larger than stroke, which favours revs over low-end torque.

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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