Valve discs, valve springs
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
The following parts distinguish the higher-performance engine from the standard engine in the area of the cylinder head:
- Valve keys (standard part)
- Valve disc at top
- Valve spring on outside
- Valve spring on inside
- Valve seal (standard part)
- Valve disc at bottom
- Valve guides
- Cylinder head
- Valve seats
The valve seats are additionally provided with a seat surface of 60°.
further to Item 3