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1980 Pontiac Grand Prix tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 1980 Pontiac Grand Prix.

1980 Pontiac Grand Prix tire sizes

205/70RH15195/75RS14
Bolt pattern
Other years
19781979198019811982198319841985 All 1978–2008
Fitment tables

5 trims sold in 1980

Open a trim for its factory package and every alternative size, front and rear.

Pontiac Grand Prix A-body

1978 – 1981 USA market 5 trims

Grand Prix 3.8

N/A · V6 195/75 SR14 2 fitments
GenerationA-body 1978–1981
PowerN/A
EngineV6, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 HR1515x6 ET8 5x120.65–TiresRims

Grand Prix 4.1

N/A · V6 195/75 SR14 2 fitments
GenerationA-body 1978–1981
PowerN/A
EngineV6, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 HR1515x6 ET8 5x120.65–TiresRims

Grand Prix 4.3

N/A · V8 195/75 SR14 2 fitments
GenerationA-body 1978–1981
PowerN/A
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 HR1515x6 ET8 5x120.65–TiresRims

Grand Prix 4.9

N/A · V8 195/75 SR14 2 fitments
GenerationA-body 1978–1981
PowerN/A
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 HR1515x6 ET8 5x120.65–TiresRims

Grand Prix 5.0

N/A · V8 195/75 SR14 2 fitments
GenerationA-body 1978–1981
PowerN/A
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 HR1515x6 ET8 5x120.65–TiresRims
Reading the table

What these columns mean

OE fitment
The package fitted at the factory for that trim.
Alternative
A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Staggered
A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.

Considering a different size?

Run your OE size against the one you want to see diameter change, ground clearance and speedometer error.

Open the size calculator
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