Those years had mixed cam sizes. The 01 was a 204/211 .525/.525 116 LSA and the 02 was a 204/218 .551/.547 117.5 LSA..and it was also ground on a smaller base circle, thus requiring a tad bit longer pushrods.
Nitrous cam for a 5.3L = 220/228 .535/.542 113 LSA

