Should I prime my lifters?

I'm with him ^ about the lifters
coat them with 30w before you install them
& then prime the engine after you adjust the valves
& Rotella oil has a high zinc content its a real good break-in oil
and if you have a new flat tappet cam then you use new lifters
if you have a roller cam its ok to reuse the lifters
the only reason you have to worry putting them back in the same hole is when you are using an old cam with the old lifters because of the wear patterns
if you are going to use the old lifters with a new cam it doesn't matter which hole they go in
but i would not recommend it unless they are roller lifters( & then i would thoroughly inspect them)

 

Thanks for the info! I'll have to think about this lifter thing..
I just got some Castrol and Zinc additive. It was all the Advanced up here had, zinc-wise.
Something people seem to differ about it whether to torque the rockers or find zero lag and then do a half-turn. Is there a reason not to torque? (this might be another thread..)

 

how you adjust the valves is determined by what kind of rocker you have
late model heads use a pedistal mount rocker that IMO is way better
& older heads use a stud mounted rocker

 

You won't go wrong with bcmcdaniel's advice. I was repeating what the machine shop that worked on my block & heads told me to do. I didn't have a problem compressing the lifters but that's not to say you won't. I'll go back to sleep now ...

 

Didn't get the casting number before torquing the heads, but they are pedistal rockers

 

Thanks guys! Think I'm just gonna go for it. Wanna get my intake on tonight too

 

Rocker studs with a positive stop shoulder and pedistal mounts get torqued. Adjustable stud and shaft mounts are set to zero lash plus your choice of pre-load.

 

Pedistals are very limited to how much lift and spring pressure they can handle with the little 5/16" mounting bolt. And the fact that if you mill the heads, deck the block, or put in a high lift cam your shimming the rails and/or getting different push rods.

 

Is this determined by how many turns it take to get to 25lbs after zero or by doing the grease/marker test for pushrod length? Or do they yield the same result maybe?

 

Marker test will tell you if the rocker is centered on the valve stem. How far you turn after zero lash applies the correct lifter preload.