Opel / Vauxhall 1.4 1.6 1.8 2.0 16V C20XE C20LET Z20LET FCP valve spring set.

Valve springs data
Installed seat pressure - 30kg 
Load - 100kg@13mm
Max. lift - up to 13mm
Made from chrome-silicone steel SAE9254-V
16 pcs. outer springs
16 pcs. inner springs
Fits Opel / Vauxhall 4 cylinder 1.4 1.6 1.8 2.0 16V engines.
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 7600 RPM.