Originally Posted by
Karlos G
Do they need drilling out of our UK heads does anyone know?
I would like to remove mine as increasing oil flow to the cam lobes and lifters can only be a good thing but I cant be arsed to take my head off to do it!
lol
They are brass inserts that look like they have been pressed in. I agree with sas, i can't see how they restrict anything and believe them to be there to direct oil onto the lobe.
Rob,