Valve springs BMW 4.4 V8 S63 conical, retainers FCP

Valve springs data
Made from chrome-silicon steel SAE9254-V
With this set the risk of valve flutter and a possible engine failure is minimized.
Recommended for engines with series and racing camshafts and over 7500 RPM.
Kit includes:
24 pcs. conical valve springs
24 pcs. titanium retainers