[earntaz]

For what this is worth ... In the past I put together a 427 BBC and installed in a 72' two wheel drive Blazer with a 700R4. Ran just fine and later on when the engine warmed up it had a slight "squeal" in the front of the engine. I used a stethoscope and it seemed like the noise was coming from behind the harmonic balancer. Removed the balancer and the chrome timing chain cover. The area where the seal is installed was not center correctly and the balancer was slightly contacting the metal surface. Installed a factory cover -- noise gone. Lesson learned ... don't used cheap crap from across the pound.