Ya, it came out in 89-93. I went over and read wiki'* account of it. You cant always believe wiki. It is not a 3800 block. It does use center bores like the 3800, but it had two versions of itself and they messed around with alot of different cranks, cams, and heads in it'* short life span. Found a nice write up about it here..
Rebuilding the Buick 3300: Engine Builder