But will it? As I said, I had an HRC 1200 kit that was a replacement cylinder block with larger liners and must have been about 71mm bore. But I'm sure I did not have to open up the crankcase for the larger liners. It's a long time ago now and I can't be 100% sure on that, but I am 95% sure. So it occurred to me that the crankcase opening is not tight around the original liners and maybe slightly larger liners can be accommodated without needing to bore the crankcase.FalldownPhil wrote:If my memory is working this morning ( maybe & Maybe not) anything with pistons over 68mm will require bigger liners.
That will require the top case to be opened up to hold the larger liners.
Best,
Phil
But it is, as I said, a long time ago now (over 30 years), hence I was wondering if anyone knew the actual size of the crankcase opening and hence how large the liners can actually be.