Subaru Engine Specs

Bore, stroke, displacement and compression for 70 Subaru engines across 9 families. Free reference with rod ratio and head specs where published.

At a glance

Displacement range	21.7-221.5 ci
Cylinder counts	2, 4, 6
Years covered	2002-2026
Families	9
Engines	70

Engine families

• EA — 10 engines
• EE — 1 engine
• EG — 1 engine
• EJ — 37 engines
• EK — 1 engine
• ER — 1 engine
• EZ — 4 engines
• FA — 11 engines
• FB — 4 engines

Every engine page lists bore, stroke, displacement, compression and rod ratio, with mean piston speed and bore/stroke character worked out, plus cylinder head specs where published. Each links into the calculators with its own dimensions filled in.

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