I can get valve springs for the cv motor ,double or single also rocker studs,pivots.lock nuts ,set screws ,solid lifters,cam grind that is a beast .Ive been running double springs on my motor for two years ,broke the engine down ,there was no cam wear.Never had a problem with the valve train.I turn my motor about 7200 rpms with a stock rod.Wont be long we will have a billit rod and piston for that motor.If interested pm.