LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Asking for a friend...lt4 valve springs

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Old Jan 28, 2008 | 12:16 AM
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Default Asking for a friend...lt4 valve springs

Anyone know the max lift lt4 valve springs can withstand. I know it's more than the lt4 hot cam kit rating of .525 but how much higher

thanks
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Old Jan 28, 2008 | 01:51 AM
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I don't know exact specs but they shouldn't be any stronger than the hot cam springs. Reason being that the hotcam is more aggressive than a stock LT4 cam.
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Old Jan 28, 2008 | 04:39 AM
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They are rated for .525 no more!
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Old Jan 28, 2008 | 07:20 AM
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Lift is not the only variable. They are too weak for a HOT cam and it's lobes are lazy compared to aftermarket stuff.

About all those springs are truely good for would be 1.6 rockers on a stock cam.
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Old Jan 28, 2008 | 11:25 AM
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Originally Posted by 96capricemgr
About all those springs are truely good for would be 1.6 rockers on a stock cam.
if even that!
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Old Jan 28, 2008 | 11:30 AM
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Originally Posted by 96lt1m6
if even that!
Thank you.
When I posted this I expected the usual claims of GM sells it as a kit so it must be wonderful.

A lot of guys out there with HOT cams leaving rpm on the table due to these weak springs.
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Old Jan 28, 2008 | 01:33 PM
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I agree, the lt4 springs shouldn't be used on much more then stock cam and 1.6 rockers...
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Old Jan 28, 2008 | 08:59 PM
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ok thanks guys i'll tell him
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