Pontiac Engine Specs

Bore, stroke, displacement and compression for 144 Pontiac engines across 30 families. Free reference with rod ratio and head specs where published.

At a glance

Displacement range	98-455 ci
Cylinder counts	4, 6, 8
Years covered	1963-2006
Families	30
Engines	144
With cylinder head data	37 engines

Engine families

• 60 Degree V6 — 2 engines
• GM 3.4L V6 (LA1/L36) — 2 engines
• GM 3800 V6 — 3 engines
• GM 60-Degree V6 — 1 engine
• Iron Duke — 2 engines
• Pontiac 138ci — 5 engines
• Pontiac 140ci — 1 engine
• Pontiac 145ci — 1 engine
• Pontiac 151ci — 7 engines
• Pontiac 173ci — 8 engines
• Pontiac 191ci — 6 engines
• Pontiac 207ci — 4 engines
• Pontiac 213ci — 1 engine
• Pontiac 230ci — 4 engines
• Pontiac 231ci — 8 engines
• Pontiac 250ci — 5 engines
• Pontiac 260ci — 2 engines
• Pontiac 301ci — 6 engines
• Pontiac 305ci — 14 engines
• Pontiac 307ci — 1 engine
• Pontiac 326ci — 6 engines
• Pontiac 346ci — 1 engine
• Pontiac 350ci — 13 engines
• Pontiac 364ci — 1 engine
• Pontiac 400ci — 18 engines
• Pontiac 428ci — 4 engines
• Pontiac 455ci — 5 engines
• Pontiac 98ci — 2 engines
• Pontiac OHC-6 — 4 engines
• Pontiac V8 — 13 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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