Ram Engine Specs

Bore, stroke, displacement and compression for 65 Ram engines across 13 families. Free reference with rod ratio, piston speed and head specs where published.

At a glance

Displacement range	182-505 ci
Cylinder counts	6, 8, 10
Years covered	1974-2026
Families	13
Engines	65

Engine families

• B — 3 engines
• Cummins B Series — 8 engines
• Cummins ISB — 5 engines
• EcoDiesel — 3 engines
• Hemi — 10 engines
• Hurricane — 4 engines
• LA — 1 engine
• Magnum — 13 engines
• Pentastar — 4 engines
• PowerTech — 8 engines
• RB — 2 engines
• Slant-6 — 1 engine
• Viper — 3 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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