The curb weight of a 1985 Chevy C1500 pickup 2WD with a 5.7L engine varied depending on options and trim level. There's no single definitive answer. However, a reasonable estimate would be in the
3,500 to 4,000 pound range.
To get a more precise figure, you would need to consult a 1985 Chevrolet C1500 owner's manual or a vehicle specifications guide from that year. Even then, the exact weight would depend on the specific truck's configuration.
