Pontiac LS5 Specs: 120 hp

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Pontiac LS5 specs: 265 ci (4.3L) 8-cylinder. Rated 120 hp, 1980–1981. Used in the Pontiac Firebird and Pontiac Grand Prix. Rod ratio and piston speed.

Each of the 8 cylinders displaces 33.1 ci (543 cc).

2 factory variants share these dimensions, rated at 120 hp across 1980–1981.

Dimensions

Displacement	265 ci / 4.3 L
Cylinders	8
Configuration	V8

Construction

Fuel type	gas
Advertised HP	120 hp
Years	1980–1981

What these numbers mean

Displacement per cylinder	33.1 ci

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Variants sharing these dimensions (2)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

Year	Advertised HP	Code
1980	120 hp	LS5
1981	120 hp	LS5

Factory cars with this engine

• 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

Similar engines

• Pontiac 260ci (1975) · 110 hp — 260 ci
• Pontiac 250ci (1975) · 105 hp — 250 ci
• Pontiac L22 — 250 ci
• Pontiac OHC-6 · 3.874" × 3.531" · 9:1 — 250 ci
• Pontiac 250 Ohc6 Sprint — 250 ci
• Pontiac 250ci · 3.877" × 3.535" · 9:1 — 250 ci
• Chevrolet 265ci · 3.750" × 3.000" · 10.7:1 — 265 ci
• Chevrolet Trademaster 265 — 265 ci

← All Pontiac 265ci engines