Porsche 221ci Engine Specs

Bore, stroke, displacement and compression for the Porsche 221ci. Plus rod ratio, mean piston speed and cylinder head specs where published. Free, no signup.

At a glance

Displacement	221 ci
Cylinders	6
Advertised power	345 hp
Years	2009–2012

This engine

Engine	Displacement	Bore × Stroke	CR	HP
9A1	221 ci	—	—	345

Factory cars with a Porsche 221ci

• Porsche 911: 2009, 345 hp; 2010, 345 hp; 2011, 345 hp; 2012, 345 hp

What varies across the family

This family is represented by a single engine in the database: 221 ci, 6 cylinders.

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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