stud upgrade for factory rockers

[NateD4]

Also forgot to mention the rocker stands help transmit some of the flex and bending if you have the bolts torqued correctly.

[gectek]

Also forgot to mention the rocker stands help transmit some of the flex and bending if you have the bolts torqued correctly.

Since they blot flat down to the head, how could they transmit any flex? They have alot larger surface area than the stud itself. If anything the stud would transmit more since the base is smaller.

[NateD4]

Poor choice of words. The studs will flex more. The stands resist flex better because of their shape and size. Hopefully that makes more sense.

[veekuusi]

How did those solid lifters and studs I sold you work out?

Sorry to answer so late, I did not notice your question.

So far the mechanical roller lifters that I bought from you, are the only ones , that I have found
to this engine.
Crower is working on a project to get me another set of mechanical lifters.
They have been talking that Buick V6 lifters would be bether.
So far I am putting your Crane lifters to my engine.

[NateD4]

Perhaps I'm missing something here, but what is so special about these lifters? Last I checked a 3400 SFI lifter is a standard .842 bore. And many LS and SBC lifters are available in that bore. It should just be a matter of pushrod lengths?

Or is there an other issue I'm not aware of?

[veekuusi]

There is a possible oiling issue.
Those lifters are "drop in",but as you know, oil goes thru the push
rods to the rockers.
And the oil holes in those mechanical lifters are in wrong places.
Other side is without oiling and the other side gets too much oil.
The two lifter oil galleries in 3100 block are different places.

Those lifters have to be modified .
Would be easier to buy ones that are planned to that engine.