Mercury Engine Specs

Bore, stroke, displacement and compression for 122 Mercury engines across 14 families. Free reference with rod ratio and head specs where published.

At a glance

Displacement range	121-460 ci
Cylinder counts	4, 6, 8
Years covered	1958-2019
Families	14
Engines	122
With cylinder head data	3 engines

Engine families

• 335 Series — 2 engines
• 385 — 10 engines
• Cologne — 10 engines
• Duratec — 12 engines
• Duratec Hybrid — 2 engines
• Essex — 7 engines
• FE — 34 engines
• Lima — 3 engines
• Modular — 6 engines
• Thriftpower — 5 engines
• Thriftpower Six — 4 engines
• Vulcan — 2 engines
• Windsor — 24 engines
• Zetec — 1 engine

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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