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bore help!

1628 Views 4 Replies 4 Participants Last post by  69quadracer
I'm trying to figure out 400ex bore info.

If I have a 400ex and bore it from the stock 85mm to 86mm.
is that considered a 416 bore?

and if i have it bored to 87mm.
is that considered 426 bore?
1 - 1 of 5 Posts
Talk to moose.He knows the math.
1 - 1 of 5 Posts
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