Who makes a 456 cubic inch engine?

A 456 cubic inch engine is primarily associated with the Chrysler Corporation, specifically in their big-block V8 engines produced in the 1960s and 1970s. This engine size is often linked to the Chrysler 440, which has a displacement of 440 cubic inches, but various modifications and configurations can lead to a 456 cubic inch engine. Additionally, some custom engine builders and performance shops may create engines of this size based on popular big-block designs.