Hello toms- Your 1984 Corvette has a 20 gallon gas tank and hold 4 quarts of oil, excluding the filter. I couldn't find coolant capacity for you, but I always eyeball that myself anyway. Let me send you to the following link to keep you up to date with information about your car-- http://www.corvetteactioncenter.com/specs/c4/1984/84specs.html. Have fun. Good luck from Bovan.
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