Yes, everyone can have a problem without question! These are machines afterall!
I unfortunately had two in a row with the same engine builder and must say I am tired of the excuses and double talk. The two pro's that helped me salvage the second 427 and make it run, because Southern was in complete denial, couldn't believe that Southern was not standing behind their product. This is all documented I might add!
You would not believe the letter I received from Bill Parham stating how lucky I was that he replaced the first motor. It ran for less than one hour!!
We could not get the second "replacement motor" to run right, to say nothing of the
oil leaking everywhere, so we took it up to a pro to run it on the dyno and try to figure out why it would not run. It came apart on the dyno! Southern wrote a really nasty letter and basically said it was all our fault because this had never happened before. They paid for a new bolt and push rods and that is it!!!!!!!
The worst thing is that while my second motor was out of commission for the month of July, after losing all of last summer to the first failed motor, Bill at Southern was bragging to me that he had resold the first motor and it was running great in some other guy's ERA Cobra!!!