brian lewis087
Active Member
i know the bore is 78.5mm on a 657x ,,I was wondering what is the largest piston the I can put in it. and were can i get them
ty inadvance
ty inadvance
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1995 sportster
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Dr Honda
Well-Known Member
Honestly.... the biggest the stock liners can handle wont' make a significant change in the displacement. At least not enough to make a power change.
From the factory... 0.50mm is the big oversize. But... if you dig around... you may find 1mm.
***EDIT****
SBT has 1.5mm oversize for the X engine.
From the factory... 0.50mm is the big oversize. But... if you dig around... you may find 1mm.
***EDIT****
SBT has 1.5mm oversize for the X engine.
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