Pushrod Length on GM 3.1 and 3.4 Engines – This is where length really matters. The intake and exhaust pushrods have crucial length differences on these engines.
Why Pushrod Length is So Important
Unfortunately, it still frequently happens that mechanics confuse intake and exhaust pushrods. This confusion inevitably leads to serious consequences: bent pushrods and damaged valves.
Specifics of GM 3.1 Exhaust Pushrods
The exhaust pushrods on GM 3.1 engines require particular attention. Their specific dimension is essential for the proper functioning of the valve train system.
Consequences of Mixing Pushrods
When pushrods are reversed or mixed, the damage can be significant. The internal mechanics of the engine then undergo abnormal stresses that lead to costly repairs.