When the "new" 426 Max Wedge V8 was released to the race community for the 1963 model year, Chrysler prepared a bulletin, to be distributed inside and outside the Corporation, describing the attributes of the modifications to the previous Max Wedge engine of 1962 engine.

This six-page document, dated June 1963, clearly outlines the significant engineering in the new 426 Max Wedge V8.

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