First thing I did was cut out the 914/6 bulkhead engine mount in front of the engine...you will see why I did this in just a bit. You can also see the nice stainless steel fuel lines that I installed here.
Back to the engine block. The JDM Spec-C came with an external oil cooler. This engine also had an additional sandwich plate for oil temp sensor. This stack was way too long and would put the oil filter at the lowest point of the car.
This is how long the oil filter mount bolt was to accommodate this length. I have since ordered and fitted a oil filter mount bolt from an N/A engine and it eliminate all the extra lenght so now I just have the oil filter mounted directly to the block.