Incorrect Valve Timing: Pushrods are responsible for transmitting motion from the camshaft to the rocker arms, which in turn open and close the valves. Mixing up the pushrods can result in incorrect valve timing, causing the valves to open and close at the wrong times. This can lead to reduced engine performance, rough idling, and even engine damage.
Interference with Pistons or Cylinder Walls: The length of the pushrods is crucial to ensure that they correctly engage with the lifters and rocker arms. If pushrods that are too long are installed, they may interfere with the pistons or cylinder walls, causing damage to these components.
Lifter and Cam Damage: Mixing up the pushrods can also lead to damage to the lifters and camshaft. If pushrods that are too short are installed, the lifters will not be able to properly engage with the cam lobes, causing excessive wear and potential damage to both components.
Therefore, it is critical to ensure that the pushrods are installed in the correct order and at the correct length when rebuilding a Chevrolet 350 engine to avoid these potential issues.
