What is max cam lift on a 5.3L? Hi, new here. I was wondering what max cam lift would be on a 5.3L before there is some piston to valve problems? This would be for stock, unmilled heads. I am looking for the max number able to run. I would not run this number, but it would give me a "safe" zone to look for in aftermarket cams. Is there some sort of formula for figuring this out? I assume if you milled the heads you would need to subtract an equal amount of lift. |
lift isn't the issue, duration is the issue not sure what you are trying to do, but it sounds like you need to call a cam vendor and get some advice before you shop for anything because the "safe" zone is way larger in terms of both duration and lift than can be useful in a 5.3 for anything but max effort drag purposes |
the 5.3 is going into a first gen rx7. loss of low end torque is not much of an issue. I still want the car to idle good, doesn't have to be great, but good. It will be tuned of course. I would like power to peak in the 6k range, I will probably run to 6500 max rpm. |
cam timing events in relation to the piston location ,and duration are what you have to be concerned about .like mentioned above contact a good cam spec person to get it right the first time . |
To keep a peak and shift window that low you will definitely want to talk to a professional. The majority of even the smallest ls cams are designed to peak at 6000 or higher. If you want a larger cam to do the same you will need something custom. |
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