The 3.2 in the Frontera is the 6VD1W DOHC Isuzu engine. Fitted in later Troopers/Bighorns. The earlier Isuzu 3.2 6VD1 SOHC was its predecessor fitted in the Mk.II Troopers/Bighorns.
From the outside they look identical apart from the inlet manifold.
The Vauxhall V6 was never fitted in the Frontera from factory.
They are all interference engines, though people have been lucky and got away with it on the 6VD1's as I think the interference is marginal. I think they class it that way to be safe.
I will add that if it is as good as the advert says then I would be very interested, but between me and the g/f we already own 4 trucks.
