[Formulajones]

Originally Posted by djseth

I have a Crower hydraulic roller cam and lifters and roller tip rockers. I also have the BBC studs, but I have my original heads. Should I also go 3/4s of a turn? I am at half a turn and I do hear some valve noise.

1/2 turn on these studs is .025" so if your lifters require more preload than that then yes you'll need more than a half turn.

The most confusing part is these lifters are not created equal and it seems each brand, and even different types in the same brand call for different amounts of preload.