[Stan Weiss]

Originally Posted by Dragncar

You are not going to need a lifter bore brace for any sft cam. I run quality SS roller rockers and a stud girdle with a solid roller cam and my lash does not change. The stud girdle keeps everything tight beyond what just the set screws in the poly locks can do.
IMO if you do the same with a sft cam you will be fine. The Crower SS rockers have a larger bearing than any aluminum RR so they will last longer.
You could buy a shaft system and be golden but expect to pay 1800+$.
"Coolface" lifters ? Well, cars have been running fine without them forever, just need the right oil. Maybe the fancy Crower sft lifters in a road race/endurance deal is of some use. But IMO for a typical nice street engine, no.
The spring pressures for a under 600 HP engine are no big deal. If you want the Coolface lifters its just a few more bucks.
The only problem I have ever had is when I used new lifters on a used cam.

So just how is spring pressure related to HP?

Stan

[Dragncar]

Originally Posted by Stan Weiss

So just how is spring pressure related to HP?

Stan

He has a Pontiac 468 that is under 600 HP and you know where these engines make max power. Relatively low RPM. He is not going to need a lot of spring pressure for his situation. So IMO if he runs a good SS rocker with stud girdle and sft cam he will not be in a high maintenance position as long as he runs the right oil.
I have seen a person break a lifter bore with a SR cam that should not have simply by running way too much spring pressure for his intended RPM. Pontiacs have weak lifter bores and attention needs to be paid to that fact.
Pretty sure people knew where I was going.
Stop trying to start a argument Stan.

[Stan Weiss]

Originally Posted by Dragncar

He has a Pontiac 468 that is under 600 HP and you know where these engines make max power. Relatively low RPM. He is not going to need a lot of spring pressure for his situation. So IMO if he runs a good SS rocker with stud girdle and sft cam he will not be in a high maintenance position as long as he runs the right oil.
I have seen a person break a lifter bore with a SR cam that should not have simply by running way too much spring pressure for his intended RPM. Pontiacs have weak lifter bores and attention needs to be paid to that fact.
Pretty sure people knew where I was going.
Stop trying to start a argument Stan.

So that is what you call it when I ask you to explain a statement you made.

I have some questions about this post but I will not ask them because I don't what to start an argument.

Stan