05-17-2008, 01:08 AM
anyone with any feed back on roller rockers ratio,performance things like that.Thinkin about putting them in my 96 ws6 formula...
05-17-2008, 01:30 PM
I put 1.6 rollers on my old '94 Formula and I could tell the difference... Make sure you upgrade the valve springs to LT4 units and do not run the rpm higher than 3k until the springs have gone through one complete heat cycle.
I ran my car pretty hard without letting the springs completely cool for a full heat cycle and one of the sprngs broke after only 200 miles! Luckily no other damage occured.
They say that 1.6 rollers on a stock LT1 is good for about 10-15 hp at the wheels.