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post #1 of 5 (permalink) Old 08-11-2014, 11:04 AM Thread Starter
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Can a 103 cylinder be bored to a 106/107

I got a set of 103 cylinders that already been bored .010 over and I was thinking about boring them out to 106 or 107. Has anyone done this and is the 103 cylinder walls thick enough to be bored to 106/107?


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post #2 of 5 (permalink) Old 08-11-2014, 11:32 AM
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103 bore plus .010 = 3.885

106 bore 3.927

107 bore 3.938

You have plenty of meat left to bore
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post #3 of 5 (permalink) Old 08-11-2014, 11:51 AM
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Originally Posted by ironmark View Post
I got a set of 103 cylinders that already been bored .010 over and I was thinking about boring them out to 106 or 107. Has anyone done this and is the 103 cylinder walls thick enough to be bored to 106/107?
Like you, I have an '08. You are considering going to a 107" by way of your temporary stop at. 103".
I've been considering jumping straight into 107".


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post #4 of 5 (permalink) Old 08-11-2014, 10:32 PM Thread Starter
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Not sure if I want to go with a 106/107 yet. I just put on new 103 cylinders not to long ago but these cylinders are just sitting here and since they are already .010 over I would have to hone them to reinstall which may make them a bit too big. Boring them to a 106/107 would be the best so I can use them the next time I freshen the top end or if I want to sell the cylinders it would be easier.


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post #5 of 5 (permalink) Old 08-12-2014, 05:52 AM
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I got a set of 103 cylinders that already been bored .010 over and I was thinking about boring them out to 106 or 107. Has anyone done this and is the 103 cylinder walls thick enough to be bored to 106/107?


Yes, we've bored those to 107" many times here.
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