The home machinists that make those cool model engines they actually run show plenty of videos of the engine being made and running once completed but leave you wondering how they made the distributor cap.

Then for the vintage car enthusiast where does he buy a new cap.

Here is a good read on how caps are reproduced from phenolic, and yes it involves making a mould and casting.



http://www.antiquedistributorcaps.co...p.pdf#original