Directions to the Chevrolet Conversion Centre:

When coming from Perth, go along the Great Eastern Highway (heading East):
A map of Mount Helena in relation to Perth
Continue along the highway. A minute after Mundaring, you will arrive at the second turn off for the Mundaring trade centre.
A localized map showing Mount Helena in relation to the Highway
Turn right onto Sutcliffe Road from the highway. Follow Sutcliffe towards the end of the street, the last building on your left will be the Chevrolet Conversion Centre.
A map showing Mount Helena's streets and the way to the Centre