The gigantes entry in Legends & Lord presents stats for generic gigantes -- a "race of giants that Gaea gave birth to when the blood of her mutilated husband fell upon her earthly form" (aside: how charming). The entry mentions both Antaeus and Enceladus as examples of gigantes, but implies that there are other gigantes too.
So, while the other gigantes probably don't differ much from Antaeus and Enceladus, I don't think the specific entries for those two can really be counted as updates of the generic gigantes stats.
I found that one years ago when looking for obscure monsters to convert, and filed it away in the back of my mind. I'm not sure what triggered the memory, but it sent me searching for it again.