• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Should my valvetrain be ok for an S1X cam?

Also a stock rocker will put out about .030 deflection on a LS6 spring, and about .025 on a 105 spring.... which puts a .600 lift back around the 570
 


No, my precision and lack of ability to test vs a cam/rocker/pushrod was what was limiting me from making specific factual observations. It is not easy to measure things like this in precision +-.005, and frankly it was not needed for what I was trying to prove. all I needed to know was that a 1.6 roller had SIGNIFICANTLY less peak lift than a stock rocker, and that a 1.8 rocker had similar peak lift to a stock rocker.
 
I've read your posts,

So that means everyone has been doing it wrong all these years milling valve guides when running ANYTHING more than .550" lift.

Guess so.
 
darkhorizon said:
1.9 rollers are a very small upgrade in peak lift over stock on a XP or s1x. 1.8s are considered a nearly insignificant upgrade over stock rockers in lift.

You probably do not need clearanced guides with 1.9 rollers on a xp or S1x any more than you need it with stock rockers.
Click to expand...

I just can't see how 1.9 rrs would work with an s1x or xp, especially if we are referring to stock heads. Maybe with stg3 ported heads and 130# springs I can see running 1.8s, but seriously 1.9s??
 


You must log in or register to reply here.
Back
Top