LS1 Performance M16 1.5 LS oil pressure adapter will allow you to install the fitting in the rear of the block or lower front of the engine to allow Additional gauges, A pressure port for turbo or other power adder or a low oil pressure cut off switch. Each ls swap adapter is fully machined for accuracy. LS Oil adapter fits all LS motors. Materials: Our ls adapters are Constructed from 6061 billet USA made aluminum. Included: 1 LS m16 1.5 to 1/8 NPT Adapter 1 Sealing crush ring. Fit: Our LS oil pressure adapter fits all year LS motors.