Woodspoint area, not far from me, those two tracks I hadnt done in a number of years. Its a old Gold mining and logging area.
https://maps.app.goo.gl/EnSqxeUa9EbkhigT9
I would say there are numourous small internal differences, everyone here justs buys a whole H152, swaps the required parts for their engine and off they go
I do laugh at all manufacturers claims of improved efficiency, it just does not translate to the real world. What does partially translate is improved emissions but mostly now days that is done through after treatment, not actual engine improvements.
Couple of cases, my 1HDFTE vs my Dads 1VD...