Originally Posted by wc3john
except AM doesnt sell springs... i'll probably get them from LRS. so at minimum, lifters and springs... will new factory springs work? The E cam is only .054 bigger lift @ the valve than stock.
They should work fine.
Is the price difference high enough to make you want to use stock springs?
Most people do not think about valve springs as having much effect on how their vehicle performs, but they do have a significant impact.
A use weakened, fatigued set of valve springs or a set that has inadequate seat pressure will not keep the valves sealed up properly leading to leaking valves that allow combustion gasses to escape to early causing a drop in cylinder pressure and reduced performance and economy.