Dodge 383ci Specs: 4.25 x 3.375 in

Dodge 383ci specs: 4.25 x 3.375 in (108 x 85.7 mm) bore and stroke, shared by all 9 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	383 ci
Cylinders	8
Bore	4.250"
Stroke	3.375"
Advertised power	258–335 hp
Years	1961–1971

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
L	383 ci	4.25" × 3.375"	—	275–290
N	383 ci	4.25" × 3.375"	—	300–335
383 4-bbl	383 ci	4.25" × 3.375"	—	325–330
383 2-bbl	383 ci	4.25" × 3.375"	—	270–290
383 Magnum 4-bbl	383 ci	4.25" × 3.375"	—	300
Dodge 383ci (1965–1971)	383 ci	4.25" × 3.375"	—	270–330
Super Bee std	383 ci	4.25" × 3.375"	—	335
2-bbl	383 ci	4.25" × 3.375"	—	258
D-500	383 ci	4.25" × 3.375"	—	330

Factory cars with a Dodge 383ci

• Dodge Dart: 1961, 330 hp; 1967, 280 hp; 1968, 300 hp; 1969, 330 hp
• Dodge Coronet: 1965, 330 hp; 1966, 325 hp; 1967, 270 hp; 1967, 325 hp; 1968, 290 hp; 1968, 330 hp; 1968, 335 hp; 1969, 290 hp; 1969, 330 hp; 1969, 335 hp; 1970, 290 hp; 1970, 330 hp; 1970, 335 hp; 1971, 275 hp; 1971, 300 hp
• Dodge Charger: 1966, 325 hp; 1967, 270 hp; 1967, 325 hp; 1968, 290 hp; 1968, 330 hp; 1969, 290 hp; 1969, 330 hp; 1970, 290 hp; 1970, 330 hp; 1971, 275 hp; 1971, 300 hp
• Dodge D-Series Pickup: 1967, 258 hp; 1970, 258 hp; 1971, 258 hp
• Dodge Challenger: 1970, 290 hp; 1970, 330 hp; 1970, 335 hp; 1971, 275 hp; 1971, 300 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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