Dodge 400ci Specs: 4.342 x 3.375 in

Dodge 400ci specs: 4.342 x 3.375 in (110.3 x 85.7 mm) bore and stroke, shared by all 7 versions. Displacement, compression and factory ratings.

At a glance

Displacement	400 ci
Cylinders	8
Bore	4.342"
Stroke	3.375"
Advertised power	165–260 hp
Years	1972–1978

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
400 2-bbl	400 ci	4.342" × 3.375"	—	165–175
400 4-bbl dual exhaust	400 ci	4.342" × 3.375"	—	240–260
400 4-bbl single exhaust	400 ci	4.342" × 3.375"	—	205
400 4-bbl Lean Burn	400 ci	4.342" × 3.375"	—	190
Dodge 400ci (1973–1978)	400 ci	4.342" × 3.375"	—	175–260
2-bbl	400 ci	4.342" × 3.375"	—	200
B 400	400 ci	4.342" × 3.375"	—	165–190

Factory cars with a Dodge 400ci

• Dodge D-Series Pickup: 1972, 200 hp; 1973, 200 hp; 1976; 1977; 1978
• Dodge Charger: 1973, 175 hp; 1973, 260 hp; 1974, 205 hp; 1974, 250 hp; 1975, 165 hp; 1976, 170–175 hp; 1976, 240 hp; 1977, 190–195 hp; 1978, 190 hp
• Dodge Coronet: 1973, 175 hp; 1973, 260 hp; 1974, 205 hp; 1975, 190 hp; 1976, 175 hp; 1976, 210 hp; 1976, 240 hp
• Dodge Ramcharger: 1974; 1976, 165 hp; 1977, 165 hp; 1978, 165 hp
• Dodge Magnum: 1978, 190 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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