- Small Block Ford (221, 260, 289, and 302): Located on the front of the engine, just above the oil pan and between the distributor and fuel pump mount.
- Big Block Ford (351C and 351M, and 400M, 429 and 460): On the front of the block below the cylinder head.
-Modular Ford engine (4.6L, 5.4L, and 6.8L): Located on the rear of the cylinder block, just above the oil pan.