I've always wanted to rebuild an engine myself, so I'm doing the 327 Chevy out of my 1955. I've bought books, watched videos, but I'm still confused about piston ring gaps. My rebuild kit came with ...

What makes piston ring selection and ring endgap so important to engine life and power? What's more, what makes that first engine firing so critical to proper break-in and longevity? Those first few ...