I've got another dummy question. I've read a lot about guys using 1.65 rockers. In my mind, using the laws of physics, or whatever, using 1.65 rockers will put more stress on the pushrods, lifters and cam lobes. I assume this, since more force must be applied to the short end, in order to apply the same force at the valve end of the rocker.
Since the force needed to depress the valve springs, is the same, regardless of rocker ratio, it makes sense that the higher the ratio, the more force required at the short end, to open the valve. Does this make sense ? Or is it ridiculous ?
Let me simplify it, with this question. Will using 1.65 rockers put more strain on the pushrods, lifters and cam lobes, than using 1.5 rockers ?
Why would it matter ? Well, if you're gonna put a lot of street miles on your engine, wouldn't less pressure on the cam lobes make the cam and lifters last longer ? I assume this would make a difference in how many street miles a flat tappet cam could last ?
I've read where some recommend breaking in a new cam with just the outer springs installed. Since there have been so many problems with cams going flat, even if you plan to run 1.65 rockers, would it be a good idea to use 1.5 rockers for cam break-in ?
