It's a plaster for a bigger problem. You are generally making a tight clearance even tighter.
The problem remains.
1. Knocking due to our fuel quality.
2. Multiple prior owners not taking care of the car as it should be (revving when cold, 25k plus oil internals, wrong oil used)
Change the bearings with stock ones, stick to the right oils, don't rev hard when cold and change oil every 10-15k and it will last.