Roller LA cam in a Magnum?

OK, just looked it up-the LA roller pushrods are showing as 6.74" length (RockAuto, 91 360, oil through pushrod), sealed power RP3277

Magnum, 6.900" length (RockAuto, '95 5.9 magnum, oil through pushrod), Sealed power RP3333

Lifter are the same though: Both examples, part numbers are the same...Sealed Power HT2269