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Ive found a half dozen different #s from supposedly reliable sources.Ls1 198/208 @ take your pick .479,498 or .500 intake, at lsa of 117.5, 118, and even 119, .467,497, and .500 exhaust, these were all for 97-98 model year. I give up!
As per 2000 gm service manual
Camshaft lobe lift (intake) 7.04mm/0.277 in
Camshaft lobe lift (exhaust) 7.13mm/0.281 in
Does not give lsa but my guess is 117.5 I think I've heard that before.