Re: How bad do my pistons look?

Posted by Packard Newbie On 2020/2/4 15:35:07

Hi Jason,

I have followed this post from the onset and I think you and I have in common that we are NOT mechanics, yet want to do what is 'right and prudent' for our cars. On my engine, there was one cylinder so bad, it required .60 thou overbore to correct, so there was no doubt that the block would receive oversize pistons, etc. I DO think, however, that the decision for you to 'go up' 10 thou, or not is one of those where, if there's any doubt, there's no doubt. You have it all apart anyway and if you have a couple of cylinders 'outside spec', why not bore?? The cost of oversize pistons and rings vs. standard is negligible and yes, there is a bit more in the way of logistics to paw through, to get it to a machine shop, etc. If you do go that route, it might even be worth considering having the same shop do the reassemble, even just to the short block stage. Just a suggestion, of course and I realize costs can become a mitigating factor with all that goes into a block rebuild. I would suggest that there is a good case here for 'short-term pain for long-term gain' in that it might squeeze the pocket book in the moment, but once you have it done and the engine is back in, 'purring like a Packard', there is a great deal of satisfaction and confidence in 'knowing what you have'. Just my two bits worth... obviously all your decisions as you go - good luck. Chris.