Test test test

pittsburghracer said

You guys that think this way are totally wrong when talking about a head like a small block Mopar Speedmaster or Edelbrock head. I try to share what I learn but if you want to be a cement head, help yourself. All heads are not alike, and all chambers are different animals.

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Yup, I got that. The gasket bore has to be at least as big as the cylinder bote or it overhangs. Now with talking a 4.180" gasket bore you must be talking BBM. If you use the 4.180" gasket to scribe your limits for an engine with a 4.120" bore, you can have a 0.060" lip to catch the incoming air/fuel. This will cause a restriction which damages flow into the cylinder.
You need not be insulting with that cement head road apples stuff!