Pontiac 265ci Engine Specs

Bore, stroke, displacement and compression for the Pontiac 265ci. Plus rod ratio, mean piston speed and cylinder head specs where published. Free, no signup.

At a glance

Displacement	265 ci
Cylinders	8
Advertised power	120 hp
Years	1980–1981

This engine

Engine	Displacement	Bore × Stroke	CR	HP
LS5	265 ci	—	—	120

Factory cars with a Pontiac 265ci

• Pontiac Firebird: 1980, LS5, 120 hp; 1981, LS5, 120 hp
• Pontiac Grand Prix: 1980, LS5, 120 hp; 1981, LS5, 120 hp
• Pontiac LeMans: 1980, LS5, 120 hp; 1981, LS5, 120 hp

What varies across the family

This family is represented by a single engine in the database: 265 ci, 8 cylinders.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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