AFAIK, all L27's received the "3-Piece" coil/ICM assembly. The coils/ICM should interchange between all L27's, L36's, and L67's (you can use the coilpacks themselves from any GM that uses 'em, but the 3800's have a different ICM than the 60* V6's.)
As a reference, I picked up a coil/ICM assembly for my 92 LeSabre (with the early "gray-intake" L27) from a boneyard which was off of a 2000 Monte w/the L36. It was a direct bolt-in replacement...
that has made my day. the yard up the street has TONS of montes.