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These pistons were custom made to have a compression ratio of 12.5:1, bore of 86? I was looking at the Carrillo catalog but these are listed as 10:1 (CPN2-3386)
I'm not sure yet, my engine is still being looked at and we don't know what we need yet (hydrolocked) but when it is put back together I am staying 12.5:1 and once the block is honed I think it'll still be 86mm (assuming the cylinders aren't totally screwed). So I'm keeping this post in my back pocket, I'll know for sure in a week or so.
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