When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Either threaded in the side of the block above the filter or in the top back edge of the block near the distributor. Usually threaded into a tee, elbow, or straight adapter.
I installed an aftermarket oil pressure gauge and didn't want to interfere with any of the factory wiring. I added the sending unit in the unused port on the rear of the block by the china wall.