This is a 2 bolt block, NO L98 was a 4 bolt unless it was a vette motor iirc, the heads come with it. This is a block, and heads still sealed, still has my old flywheel on it, only thing I did was pull this, drop it into my dads truck and steal what I needed for my TA which was accessories and intake. Sitting in the back of my dads S10 as we speak, need this thing gone like yesterday. PM me or hit me up on AIM at Chadz89GTA