How much horsepower does a 1983 Chevy 305 truck motor have bored 30 thousands over?

The horsepower of a 1983 Chevy 305 truck motor bored 30 thousands over will vary depending on a number of factors, including the specific engine configuration, modifications, and tune. As a general guide, a stock 1983 Chevy 305 truck motor produced approximately 165 horsepower. Boring the engine 30 thousands over will typically increase the displacement and compression ratio, which can result in a modest increase in horsepower. However, the exact amount of horsepower gained will depend on the specific engine build and tune. It is recommended to consult with an experienced engine builder or tuner for an accurate estimate of the horsepower potential of a bored 305 truck motor.