What is a 400 with a 327 crank?

A 400 with a 327 crank refers to a specific engine configuration, often related to Chevrolet small-block engines. In this case, the 400 cubic inch engine is modified by using a 327 cubic inch crankshaft, which alters the stroke and can change the engine's characteristics, such as its displacement, torque, and power delivery. This combination can result in a unique engine build that may enhance performance for specific applications, such as racing or street performance. However, it requires careful tuning and compatibility considerations for optimal results.