Dodge 231ci Specs: 3.78 x 3.425 in

Dodge 231ci specs: 3.78 x 3.425 in (96 x 87 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.

At a glance

Displacement231 ci
Cylinders6
Bore3.780"
Stroke3.425"
Compression9.6:1
Advertised power162–215 hp
Years1994–2010

This engine

EngineDisplacementBore × StrokeCRHP
EGH231 ci3.7795" × 3.4252"9.6:1162–215

What varies across the family

This family is represented by a single engine in the database: 231 ci, 6 cylinders, a 3.7795" × 3.4252" bore and stroke.

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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