[cabmandone]

I bought a pair of heat exchangers off of an older car to try on my 3.2. They are the ones the SSI are styled after. I got them cheap and the owner said if they wouldn't work he'd refund the money. The problem is, it looks like one side might have been thick flange and someone machined them down. Is this normal? I'm basing this on the fact that the right side has a raised ring at the pipe opening. Will this cause a seal problem?