Head needed doing at 200,000km (expensive) and will need doing at 400,000.
Radiator went due to lack of maintenance by my dad.
Backfires on gas when it is close to needing a minor service.
For a naturally aspirated 6 its very quick.
Because its dual fuel its extrememly cheap to run ($15 to fill the tank depending on fuel prices)
Very reliable. It has only broken down once and that was due to overheating due to lack of maintenance.
It's cheap and it goes hard.
It can keep up with Turbo 4's running up to 12psi.
It has a fairly decent amount of torque off the line.
You are asking for trouble with reliability and durability puting the holden v6 on gas!!!