How many know about the LSA engine...?

[Doober]

I've seen it start showing up, from what I've read so far it's a supercharged 6.2, detuned version of the LS9 from the ZR1 and shows up in the CTS-V (556hp/551tq).
http://gmhightechperformance.automotive.com/94564/0901gmhtp-ls1-ls6-ls2-ls3-l99-ls4-ls7-ls9-lsa-engine-history/index.html