New Prototype Engine: ZR28R Rebuild 

It's actually an amalgamation of parts from various different engines. The case cover with the pump and filter is a custom made part and its no available for purchase at the moment. It works very well though filtering out all the nasties from the engine oil. It allows the engine oil the last much longer and has much more effective lubrication for the crank shaft / connecting rod.

You’re right, the oil filter + pump has been done before, but my setup also has direct oil line that goes straight from the filtered engine oil to connecting rod for direct lubrication instead of relying on the scoop to splash engine oil (the scoop was then removed to reduce impact from the connecting rod with the engine oil) Personally, I have not found existing hardware that could achieve this, which is why we made this new setup prototype. Perhaps it exists already and I just couldn’t find it, which would mean it was a waste of money, but we did learn quite a bit along the way developing this system, so I’d say it was still worth it.