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1991 Pontiac Firebird 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 1991 Pontiac Firebird.

1991 Pontiac Firebird tire sizes

215/65RH15205/70RS14235/60RH15195/75RS14245/50RV16255/45R17225/55RH16
Bolt pattern
Other years
19871988198919901991199219931994 All 1967–2002
Fitment tables

4 trims sold in 1991

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

Pontiac Firebird F-body III

1982 – 1992 USA market 4 trims

Firebird 3.1

139 hp · V6 195/75 SR14 4 fitments
GenerationF-body III 1982–1992
Power139 hp
EngineV6, Petrol
Center bore70.3 mm
PCD5x120.65
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 SR1414x7 ET12 5x120.65–TiresRims
215/65 HR1515x7 ET8 5x120.65–TiresRims
235/60 HR1515x7 ET0 5x120.65–TiresRims

Firebird 5.0

148 hp · V8 195/75 SR14 4 fitments
GenerationF-body III 1982–1992
Power148 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
195/75 SR1414x6 ET8 5x120.65–TiresRims
205/70 SR1414x7 ET12 5x120.65–TiresRims
215/65 HR1515x7 ET12 5x120.65–TiresRims
235/60 HR1515x7 ET0 5x120.65–TiresRims

Firebird 5.0i

188 hp · V8 205/70 SR14 4 fitments
GenerationF-body III 1982–1992
Power188 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
205/70 SR1414x7 ET12 5x120.65–TiresRims
215/65 HR1515x7 ET12 5x120.65–TiresRims
225/55 HR1616x7.5 ET0 5x120.65–TiresRims
245/50 VR1616x8 ET16 5x120.65–TiresRims

Firebird 5.7i

240 hp · V8 245/50 VR16 2 fitments
GenerationF-body III 1982–1992
Power240 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
245/50 VR1616x8 ET16 5x120.65–TiresRims
255/45 ZR1717x8 ET0 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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