This is a new 2366 SCAT. The same area on the original 1.7 block is shut. I have no idea what this is. If I had to guess it's some performance thing.

What is this? Is there a fitting? DO I seal it?

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The orange one is the cooling fan housing the blows air through the heat exchangers, should be one on the other side as well.

The hole in the block itself is an enormous oil leak. NOT a performance thing, looks like they used a bus case. That is were the bus oil filler attaches, you will need a blockoff plate.

+1 on a buss case. I got the same on the engine I now have despite having sent a 914 case to the engine builder. I sent the engine back and told them to use my case.

Just make a block off with some aluminum and bolt it on. Easy. I am using the same case on my 2056 and its just not an issue.

A case is a case is a case.

Zach

I see some block off plates out there. Is there something already made? Mechanic is a bit lazy.

There's a factory part. I think I may have one

All well and good blocking it off but unless the dipstick tube has been drilled for the case (as per 914 case ) there will be no way to check oil level.
You can use the original bus filler tube and cut it down that way you retain the bus dipstick portion,you will need to use a 914 breather filler assembly.

I have a dipstick and breather. Actually I need the retaining clip for the breather.

I was told this was a Porsche block ...hmmm.

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All good then,case must have been drilled for the tube or you have a weird case ,just block it off.