Oil Pressure Adapter

Product Info

The factory 4200 oil pressure is a fraud. Yes, for some reason GM decided to use a switch instead of a sensor. The factory GMT360 and GMT355 guage in the dash is completely made up by the ECU based on engine RPM, and the only time it shows a real number is if it's too low, which could be too late.

This is a special fitting (designed by me for the Atlas engines and not a re-purposed LS design) allowing an aftermarket gauge or pressure adapter to be added to the un-used port on the front of the block's oil filter casting. (This does not replace the OE oil pressure sensor/switch) This is a higher quality part that's also less expensive than anything you will get on amazon, and you're supporting me instead of Mr. Bezos. 

Works with any Atlas engine: 4, 5 or 6. Anodized 6061-T6 Aluminum. The M16x1.5 threads are the exact length as the OEM plug, and the internal thread is common 1/8" NPT to fit a wide variety of sensors, hoses or gauge adapters.

Please note: This fitting is NOT long enough to fit the oil galley ports on the side of the block! Do not attempt to use it there for oil feeding! This fitting occupies the same port on the oil filter housing as the oil feed kit, so they cannot be used together.