24 bent valves

[Smallblock454]

Hi,

what engine are we talking about? 2.7 (220 HP) or 3.2 (252 HP) litre with Vario Cam heads - not Vario Cam Plus? Or am i wrong?

thstone:
You're right. If the tube to gear connection will fail, this would only affect one bank. See 8 and 9 on schematic.
I agree with the fact that the engine has to be completey inspected and the cause has to be found.

Possibilities:
When all 24 valves were damaged at the same time the only way could be that chain 7 sprung over - which i can't imagine. Maybe if chain tensioner 2 and 5 failed, or somebody did a fault when installing the new IMS bearing.
Both chain tensioners for chain 8 and 9 failed at the same time. Hm… i think no.

Regards
Markus