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f20c overbore

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Old 09-14-2008, 08:32 AM
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Default f20c overbore

I'm just curious as to how much you can overbore the F20C block before needing to re-sleeve it? Searched and couldn't find this information. Thank you.
Old 09-14-2008, 04:51 PM
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0.010 oversize.. Not much at all. Honda only offers pistons in .010 oversize, too. You need to either re-sleeve, buy a new block, or buy a new bottom end assembly.

There is supposedly a special tool to re-hone the damaged Honda block.

It's gonna be expensive either way, unfortunately.

-LRW
Old 09-14-2008, 10:22 PM
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Hmmm that's it? Well do you think that is enough to get rid of a very light scoring? I'm going to be putting H22A FRM-friendly pistons in this block.
Old 09-15-2008, 05:15 PM
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Originally Posted by ABCVTEC,Sep 14 2008, 10:22 PM
Hmmm that's it? Well do you think that is enough to get rid of a very light scoring? I'm going to be putting H22A FRM-friendly pistons in this block.
You can over bore 0.25mm (.01in)
What prelude pistons are you planning on using and with what rod/crank combo?
Old 09-25-2008, 11:46 AM
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H22a pistons and rods, k24 crank.
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