Yes and no. TH400 was a VERY expensive option if a manual was standard (like in everything except Premier and Statesman), but there were a lot of HJ-HZ Statesmans made. However these all have 11 in front of the QT so that narrows down the QT prefixed TH blocks a fair bit. Most of those you find are either 5.0L HJ-HZ Premier/LS or GTS, plus a small percentage from Belmont, Holden and Kingswood. Plus we know 580 of them were in HX LE, 106 in HJ LS. TH400 was also much more common in GTS than it was on 5.0L optioned Holden, Belmont or Kingswood. It was also standard behind 308 on 1-tonner.