Funny how LS engines can run hydraulic roller lifters for 200,000 and more miles trouble free.............
204/213 duration at .050 @ 520 lift stock GM cam in my 05 GTO.
My LS2 has 141,000 miles on it since new, never ticked once. It will run 6 grand with a stock GM valvetrain.
It seems no one gives a damn about making quality parts for our tiny market, and we just get overpriced crap. And we're supposed to be grateful they make crap for us to buy?
If someone designed a rev kit for the hydraulic roller lifters you could remove some of the spring from the heads, helping relieve some stress on pushrods and the hydraulic portion of the lifter. I know it's a small market, but we've been able to get parts a lot more technical than a rev kit made for Stratostreak engines in the past.
I have a Crower solid roller for a Pontiac from back in the 60s, fairly radical for the time, with a rev kit, never had an ounce of trouble with it, and ran it in 3 different engines. It would run 6500 RPM, but with stock cast rods I didn't take it there too many times.........
Just thinking out loud is all.