Ford 240ci Specs: 4.00 x 3.18 in

Ford 240ci specs: 4.00 x 3.18 in (101.6 x 80.8 mm) bore and stroke, shared by all 3 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	240 ci
Cylinders	6
Bore	4.000"
Stroke	3.180"
Compression	9.2:1
Advertised power	103–150 hp
Years	1965–1974
Cylinder head data	1 of 3 engines

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
240 Six	240 ci	4" × 3.18"	—	115–150
V	240 ci	4" × 3.18"	—	103–150
Ford 240ci · 4" × 3.18" · 9.2:1	240 ci	4" × 3.18"	9.2:1	150

Factory cars with a Ford 240ci

• Ford F-100: 1965, 150 hp; 1966, 150 hp; 1967, 150 hp; 1968, 150 hp; 1969, 150 hp; 1970, 150 hp; 1971, 140 hp; 1972, 120 hp; 1973, 115 hp; 1974, 115 hp
• Ford F-250: 1965, 150 hp; 1966, 150 hp; 1967, 150 hp; 1968, 150 hp; 1969, 150 hp; 1970, 150 hp; 1971, 140 hp
• Ford Galaxie: 1965, 150 hp; 1966, 150 hp; 1967, 150 hp; 1968, 150 hp; 1969, 150 hp; 1970, 150 hp; 1971, 140 hp; 1972, 103 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.

← All Ford engines