Valve problems?

[black_on_black]

Has anyone ever heard of the heads popping off of the valves with a cam install? A guy from Comp cams says that with after markt cams you increase the chances of popping the heads off the valves. I haven't ever heard of this but then again I havnt heard everything. Anyone had this happen?

 

[03CobraEG]

never heard of that

 

[black_on_black]

Anyone else?

 

[ShelbyGuy]

common with cheap/oem valves (esp. hollow stem). ferrea stays in business for a reason...

its REAL common on 427 ford gt engines. they used a sodium-cooled exhaust valve thats notorious for losing its head. you think a blowed-up 4.6 is expensive? try a 427 high riser.