* Lifter bore size and shape: The lifter bores in the cylinder head are specifically sized and shaped to match the lifters. This ensures that the lifters can move smoothly up and down in the bores without binding. If a lifter is placed in the wrong bore, it may not be able to move properly, which can cause engine damage.
* Lifter orientation: The lifters are also designed to be installed in a specific orientation. This ensures that the lifter faces the correct way and that the oil passages are aligned properly. If a lifter is installed incorrectly, it may not be able to function properly, which can also cause engine damage.
* Valvetrain timing: The lifters play a critical role in the valvetrain timing of the engine. If a lifter is placed in the wrong location, it can alter the timing of the valves, which can cause the engine to run poorly or even damage it.
For all of these reasons, it is important to ensure that the engine lifters in a 1994 Toyota Corolla are placed back in the same location in the cylinder head.
