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Old 12-22-2003, 11:58 AM
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Will stock valve springs work with a comp 268H cam?

Will stock Chevy valve springs work with a Comp 268H Cam? Thanks.

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Old 12-22-2003, 12:10 PM
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The only way to know is to measure coil bind and spring pressure. In all honesty you are 99% of the time better off replacing the springs and getting the ones that match your cam. This is the only way to get full potential out of the cam. I assume you know you have to replace the lifters as well, right? If not you will ruin your new cam before it is even broken in.
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Old 12-22-2003, 12:12 PM
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yeah, i know i gotta replace the lifters. Thanks.
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Old 12-22-2003, 12:18 PM
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Springs are relatively inexpensive when compared to all the money and arm waiving you do for a cam change so I always by the cam suppliers spring set.

Last edited by willys36@aol.com; 12-22-2003 at 12:26 PM.
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Old 12-22-2003, 03:20 PM
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IF you use stock spring you stand a good chance of floating the valves at high RPM, BUT if you use HI PREF springs it adds extra pressure on the lifters, which can "prang" your cam. IT's one of the pit falls you get into if you just add parts without knowing how they interact with each other, also that's what it's better to get kits with all the stuff from the same manufacture, so everything is made to work together. BELIEVE me, been there, done that!! Good Luck! ...Mark
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Old 12-22-2003, 03:44 PM
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trust me to change the springs.ive done it ,and i didnt change the springs.400 miles into a 1200 mile trip one of them detonated ,had it fixed and by the time i got to chicago another one .trust us change them.
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Old 12-22-2003, 04:33 PM
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Mike, its been a long time since I was 17 but when I was I put a about the same size cam in my camaro. A lot of stock rocker arms do not have enough slot length to handle a .460 lift cam and will start breaking rocker arm studs over time because of stud deflection. It happened to me and several others I know. Just something else you need to consider. At the minimun you'll need some long slot rockers if the stockers hit.
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Old 12-22-2003, 04:35 PM
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Mike_82 you will have to change your valve springs. I suggest buying the springs that Comp Cams sells that are matched for the cam you have. Stock Chevy valve springs can not handle any more than a maximum of .450 lift.
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