1.6 rocker arms??
 

Ok. So I was bored at work and wondering if anyone made 1.6 rockers for the LS1s. I was thinking that if anyone made these, you could swap them on the car for regular daily driving and make the springs live longer. Then on the weekend or when you go to the track, put the 1.7s back on. Sound stupid to anyone?

I have seen them made for special applications. There was just no advantage to them.

Nate

There are "break-in" rockers available in some brands with 1.4.and maybe 1.3:1 ratios. I've even heard of engines that ran worse after putting the regular ones back in the exhaust, so the racer stuck with the low lift parts...

what you could do is get a cam designed around 1.8 rockers and then run the stock 1.7's for better spring life and weekends.

Yea. Didn't think about that. I was just thinking that you could have like a .600 lift cam and swap some 1.6's on it and have a decent ~.560 lift for normal driving and whatnot .

I would just run a cam on high lift XE lobes, most of thoes are around .570-.585 and make decent power.

The thing is, is that it isn't as much the lift as it is the harshness of the lobe that wears on springs. If you lower the lift and still have a XE-R lobe, it's still gunna wear out. I would say that lift is miniscule in determining wear, unless your pushing your springs to coil bind every time.

Agreed. Its how fast the valve opens that's really hard on the springs. A lazy ramp rate and high lift is much easier on springs than an aggresive ramp and the same lift.