[Hot Rod Reverend]

this is all interesting - these knocks at idle, or otherwise, can be hard to diagnose unless you tear into the engine. And we all know that usually means at least removing a head for a look-see. My 292 runs like a cat on a hot tin roof, has excellent spark plug readings, and all the rest; yet I have a very light knock in #1 cylinder whenever the engine is cool. Above idle, you can never hear it. After a 5 minute warm-up it goes away completely. Reading all of this kind would lead me to believe that it may be a pin bushing for #1 piston's connecting rod... dunno. Not sure if it's worth it to tear into it for all of that - nothing has gotten worse over 2 years time but what do I know?