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Discussion Starter · #1 ·
Hey guys I just tore down my motor 1972 Cb 450K and the cylinders are trashed. I found a great place to get the bore job done put having trouble finding the >50 over pistons and rings. Any help would be great.
 

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I found a .25 over piston kit on Ebay... Pain $150 for the pistons and rings. Said new still in the box lets hope they are in good shape. The 3mm over kits? Do they work well? I saw those but was leery because they were not OEM parts. I'm sure going that much over is going to require some carb re jetting also. But would give the 450 a little more motor. Interesting.
 
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