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1968 Chevrolet Corvette 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 1968 Chevrolet Corvette.

1968 Chevrolet Corvette tire sizes

205/75R15225/70R15255/60R15
Bolt pattern
Other years
19641965196619671968196919701971 All 1953–2026
Fitment tables

6 trims sold in 1968

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

Chevrolet Corvette C3

1968 – 1982 6 trims

Corvette 5.3 327cid

350 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power350 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 5x120.65–TiresRims

Corvette 5.3 327cid

300 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power300 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 5x120.65–TiresRims

Corvette 7.0 427cid

390 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power390 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 5x120.65–TiresRims

Corvette 7.0 427cid

435 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power435 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 5x120.65–TiresRims

Corvette 7.0 427cid

400 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power400 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 5x120.65–TiresRims

Corvette 7.0 427cid

530 hp · V8 205/75 R15 4 fitments
GenerationC3 1968–1982
Power530 hp
EngineV8, Petrol
Center bore70.3 mm
PCD5x120.65
Thread7/16" - 20 UNF
Tire sizeRim size and bolt patternPressure, psiPrices
205/75 R1515x7 ET-2 5x120.65–TiresRims
225/70 R1515x7 ET-3 5x120.65–TiresRims
225/70 R1515x8 ET-1 5x120.65–TiresRims
255/60 R1515x8 ET-3 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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