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SPECS · PICS · RATING
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Harley-Davidson Sportster 1000 discussion forum:RE: What is the maximum a 72 xlch can be bored? |
| RE: What is the maximum a 72 xlch can be bored? |
| Dr E said 2004-11-04 23:44 |
| I am not 100% sure of this, but I was told that 60 over was the max before you compromise the integrity of the walls. I have a 72 xlch that is bored out 20 over (domed pistons) and that increased the horsepower almost 200 cc´s. |
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