Hound Dog ... as in the Vectra, Omega, Cavalier and Calibre are GM engines, not the Frontera

I will add the Vauxhall Monterey is also the Isuzu 3.2 V6. Though came in two versions
The early SOHC 3.2 V6 (12 valve) 6VD1
The later DOHC 3.2 V6 (24 valve) 6VD1W
The latter was fitted to the Frontera B Series.
Visually they both look the same at first glance, but both hold subtle differences.