Introducing the Holden HZ, a hallmark of the 'Kingswood' legacy and the final iteration produced from 1977, this model embodies the spirit of reliable family motoring in New Zealand. With a refined design over its predecessor and newly integrated Radial Tuned Suspension (RTS), the HZ offers enhanced handling and a comfortable ride. Available in various formats - from sedans to utes - it meets a diverse range of transport needs, solidifying its place in the hearts of Kiwis. Let's explore the highlights that make the HZ a cherished icon on our roads.
Given their age, rust is a major concern with the HZ, particularly in areas like the sills, wheel arches, and around the windscreen. The 'Red Motor' inline-six engines are generally reliable but can suffer from oil leaks and worn valve guides. The V8s are known for their power but can be prone to overheating if the cooling system isn't maintained. The Trimatic automatic transmissions are robust but can become sluggish with age. Suspension components, like ball joints and bushes, are also likely to need replacement.
When taking an HZ for a WOF, pay close attention to rust, especially in structural areas. Check all lights are working and lenses aren't damaged. Suspension components should be inspected for wear and play. Brake lines and hoses should be free from leaks and in good condition. Tyre condition and tread depth are also critical. Ensure the steering has no excessive play. Exhaust systems on older vehicles are often prone to corrosion and leaks which will cause a WOF failure.
The Holden HZ series stands out for its combination of practicality and performance. Underneath the surface, the RTS system was revolutionary for providing improved stability and handling. While maintaining engine options similar to the previous HX series, the economical 2.8L 'Red Motor' inline-six engine and powerful 5.0L Holden V8 continued to make this model popular among families and businesses alike.
However, being from the late '70s means that regular maintenance is crucial to preserve its legacy. Common issues include aging suspension components that often need replacement, such as ball joints, as well as concerns about rust, particularly in the sills and wheel arches. The cooling system deserves particular attention around 150,000km, with parts like the Water Pump, Thermostat, and Radiator needing inspection. Regular oil service and brake maintenance can help prolong your HZ's life, reinforcing its dependability. If you're looking for the right parts, you can find quality options in our Cooling, Braking, and Filtration categories to ensure your Holden remains in top condition for the road ahead.