Building up a 1.7, Will it hold up? Options

[Michael J]

I am looking at another 914 which has a 1.7 that has been built to what the PO told the current owner is a 1972 cc, some sort of mild cam and carbs. The story is that the case had to be machined to get the big bore kit in. I thought that 96mm cyls equalled 1911cc on a 1.7 and didn't need any machine work???. So if this isn't just a story, and I will get to the facts before I part with any $, is the 1.7 case durable enough to withstand higher compression and generally more stress. Even if it makes 100 to 110 HP that is a big increase from stock.