Hi Bumps ,

You can use HK1616F - NTN or just get an old power torque motor and use the power torque alloy conrod and big end bearing.

https://outdoorking-forum.com.au/forum/ubbthreads.php/topics/119997/victa-full-crank-engines.html

I did see one in Aus for $11. but was just one of the first ones I looked at. https://au.rs-online.com/web/p/roller-bearings/0454749

Try your local bearing shop or just google online sales for HK1616F - NTN

Cheers
Max.

Attachments
Victa-full-crank-PT-rod.jpg (44.15 KB, 8 downloads)
big end bearing.jpg (73.79 KB, 4 downloads)