Volvo Engine head porting / port matching prep work !
Music : Mr oizo and Gaspard Augé "tricyle express"
Step two in the project :
Gasket matching is a good way to improve the flow in your head (engine heads only) and to avoid the bad turbulences where they are not supposed to be : between parts.
It's the first step in your porting job that you should think about ,and do with your brain and hands.
The castings patterns are often quite "bad quality" (or i should say the consequence of the application of a mass production process ) and it's the way to start this kind of job.