318 blues?

I have a /6 but found a 318 motor which is fine for now. I just want some power with a good V-8 sound. The guy said it has "Swirl Port heads" I'm unsure of what those are? But those were pretty new, it it smokes once in a while, but not all the time. he said he thinks it's a "sticking ring", because the heads are fairly new. Is this going to be a big issue if I get this motor?
What would it cost to fix?
Author: admin