Victa still list four professional and one domestic 2-stroke models on their website. I dunno if their Adelaide contract assembler has ceased putting the engines together yet, but the writing was big on the wall, early this year.
New national emissions standards for small engine equipment, now due to commence in 2018, will spell the end for sure.
Victa outsourced the casting and machining of the PowerTorque blocks to China some time before 2000, so any later engines were assembled here only. The earliest Chinese blocks had a few QC problems, IIRC.
As said above, the simple way to spot which block you're looking at is the spacing of the cylinder fins. Comparison pic is
HERE. The Chinese block engines do seem to be more prone to overheating, not surprisingly.
