2 liter engine swap question. Oil pressure sensor? Options

[roundtwo]

Have a 1971 that I purchased a few years back from the original owner. He upgraded it to a 2 L some time back.

Fortunately, I have a 2 L that I bought from a customer at Eason Auto Works who was upgrading to a six in his 914. It had all the documentation from the rebuild and only about 35K on it.

Fast-forward to now and I’m transplanting that engine into the 1971.

See pictures.

Pic 1. Replacement engine with sensor.
Pic 2. Original engine with oil pressure
Pic 3. Original engine sending unit (?)

Original engine in picture number one and number two. Oil pressure sensor next to the distributor.

The replacement engine I have only has an engine temperature sensor? in the same spot.

Car has a oil pressure gauge

Do I need remove the engine tin to swap out the base of the oil pressure fitting?

I’m not sure what I’ll find under there.

I would like a working gauge, but I’ve read on some of the forums that having an oil pressure sensor leak rapidly can be catastrophic if it fails


Appreciate some advice about this. .

[roundtwo]

Pic 3



Engine surgery room