426 inch+ small blocks

I agree. When a company makes a production commitment (GM) for a 4 bolt cross bolted bottom end and a new head design this engine's longevity becomes a byproduct of the engineering. It's no wonder the LS series is an easy build to 500hp. IMO Chrysler engineering attempted to keep up with the new gen hemi but I would have preferred an LA updated design with better heads and a stronger bottom end. I'm not cruising for arguments but I feel the boat was missed big time in this area.