Here's why:
* Older engines: Timing chains were the standard for older engines like the 1977 Chevy 350. They are more durable and require less maintenance than timing belts.
* Timing belts: Timing belts became more common in the 1980s and 1990s. They are lighter and quieter but need to be replaced at regular intervals.
While timing chains are generally more durable, they still require maintenance and can wear out over time. It's always a good idea to check your owner's manual or consult a mechanic to determine the best maintenance schedule for your specific vehicle.
