Pinky

Intake or Exhaust side?

Mijae007

woah GOOD CATCH!!

AP1Chief

Exhaust, its BC valvetrain, i think i found its limit.

F1TwoThousand

Are you running Titanium retainers by anychance? Can you provide kit# just to keep an eye out for other owners that might suffer same

noodels

Good picture of a failure,well diagnosed

Charper732

I was just about to put the head on my f24 build and didnt think about checking the guides earlier..checked em right before install and realized the guides were worn more than twice the service limit..thank god i did. I checked all 3 heads I have and all of them are gone past the limit

you may want to consider checking them

AP1Chief

Its getting the Carey bales 6.6 kit in it.

Soon as I get to Washington, and pull and send the head off.

Its the BC titanium option kit.

noodels

One should be prepared to check & replace & rebuild often using titanium componants.
any fracture will amplify,even a minute scratch ..

Charper732

Ti intake valves? That would be dope asf. I wonder how high you could rev a F series valvetrain with Ti intake valves with ferrera billet rollers

Mijae007

Making me nervous, I have stock valves with titanium supertech springs/retainers...guess i should do a valve adjustment and check for failures soon!