Oldsmobile Engine Specs

Bore, stroke, displacement and compression for 104 Oldsmobile engines across 28 families. Free reference with rod ratio and head specs where published.

At a glance

Displacement range	138-455 ci
Cylinder counts	4, 6, 8
Years covered	1961-2017
Families	28
Engines	104
With cylinder head data	29 engines

Engine families

• Aurora — 1 engine
• Diesel — 5 engines
• Diesel V8 — 2 engines
• Northstar — 1 engine
• Oldsmobile 138ci — 3 engines
• Oldsmobile 151ci — 3 engines
• Oldsmobile 173ci — 5 engines
• Oldsmobile 207ci — 4 engines
• Oldsmobile 215ci — 4 engines
• Oldsmobile 231ci — 6 engines
• Oldsmobile 250ci — 3 engines
• Oldsmobile 252ci — 2 engines
• Oldsmobile 260ci — 3 engines
• Oldsmobile 262ci — 2 engines
• Oldsmobile 305ci — 4 engines
• Oldsmobile 307ci — 3 engines
• Oldsmobile 330ci — 6 engines
• Oldsmobile 350ci — 8 engines
• Oldsmobile 403ci — 1 engine
• Oldsmobile 455ci — 9 engines
• Oldsmobile V8 — 3 engines
• Quad 4 — 8 engines
• Rocket — 15 engines
• Rocket Diesel — 1 engine
• Rocket V8 — 4 engines
• Rockette — 1 engine
• Shortstar — 1 engine
• Small-Block V8 — 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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