* 305 cubic inch engines were exclusively V8s (small-block family) and were used in various Chevrolet models like the Camaro, Corvette, and Silverado from 1976 to 1993.
* Chevrolet's 6-cylinder engines have generally been inline-6 configurations in various displacements, including 230 cubic inches, 250 cubic inches, and 4.3 liters (262 cubic inches).
The combination of a 305 cubic inch displacement with a 6-cylinder configuration is not a known engine produced by Chevrolet.
