The 4.900 bore space Hemi 99 has a 9.00" +/- deck height. The 5"bore space you can get taller blocks for. Of course if unlimited budget you can have a billet block made anyway you want. I toyed with the idea of using a CNC motorsports BB Ferd block drilled for the Hemi 99 heads. The valvetrain geometry would suck though. They make those blocks up to 11" deck iirc.