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this might be an odd question, i've searched the forum and haven't found any form of discussion on this topic.

planning to install aftermarket cams in my ls/vtec. what im mostly paying attention to is the lift and duration #'s.....stock GSR lift is around 10.6mm. the lift i'm looking for is around 11.2-11.8mm approximataly. and never revving the engine past ~8000rpm.

many companies say that you can use the lower stages of cams ( stage one, spec A...etc...) without upgrade of the valve springs and using thr stock valve train.

my question is, does anyone have any info on what is a safe lift on the cams before i have to start worrying about "floating" at high RPM's.
 

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Exactly. The cost of springs and retainers do not cost more than losing the entire engine. Most of those stage 1 cams recommend you use at least the ITR valvetrain anyways if you're going to go OE.
 
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