454 cubic inches bore to 496 how to?

To increase the engine displacement from 454 cubic inches to 496 cubic inches, you typically need to increase the engine's bore or stroke. You can achieve this by either boring out the cylinders to a larger diameter or increasing the stroke length with a different crankshaft. It's essential to ensure that the engine components are compatible with the new specifications and to consider any necessary modifications to the engine block and heads. Always consult with an experienced engine builder for specific recommendations and calculations.