Rick is correct that you'll need a bolt-on type wheel spacer, commonly referred to as a wheel adapter, however the C6 wheel pattern is also 5x4.75, so both the inner and outer lug patterns would be the same. Just for reference, I have a 45mm [1.772"] thick adapter on a similar wheel and similar car ('73 Nova)...but have yet to run it with this combo.
Tobin
KORE3
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