I am having an interesting problem. My truck is eating oil. Not bad but not normal. Anyways I was doing a head re torque and noticed that 5 of the valve seals had popped up. When I put this head together I used victor-renz seals. I have never ran into this problem even reusing stock seals before. Is there anything such as a high po seals that can stand the 4g revs?

Thanks,

Josh

 

Cummins makes a valve stem seal, that has a built in holder that goes under the valve spring. I have them on my truck and they work great. I believe it's more the boost, along with drive pressure, then the RPM's that cause the problem. I don't know the part number, but I got mine from Rip at Source Automotive.

Paul

 

Paul thanks for the info!

Josh

 

Can valve seals be changed with the head still on the truck?

 

Yes they can but its a PITA!