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New pistons should i re balance?

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Old 03-31-2008, 07:14 AM
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Default New pistons should i re balance?

Hi Guys, i moving to a 4.070 bore block and fitting my existing 4" crank into it.
I am fitting Mahle pistons to my Eagle assembly, would you guys reckon to balance it up? Cheers
Old 03-31-2008, 07:33 AM
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cheap insurance mate
Old 03-31-2008, 08:04 AM
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...yes
Old 03-31-2008, 08:45 AM
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What's the difference in piston weight? If they're within a couple of grams, run it. If they're out more than that, your bearings will thank you for the rebalance.
Old 03-31-2008, 10:11 AM
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weigh the pistons, rings, spacer and pin of both pistons sets that will tell you what you need to do

if your within a few grams you can get a heavier pin, if your going to a heavier piston may not be an option.




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