LS1TECH - Camaro and Firebird Forum Discussion

Generation III Internal Engine 1997-2006 LS1 | LS6
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.685 lift springs

   
Old May 2, 2023 | 06:07 PM
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Default .685 lift springs
Any pros or cons on running .685 lift spring instead of .660 on a 230/236 612 612 113.5 cam on a 900plus horsepower engine ?
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Old May 2, 2023 | 09:27 PM
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It more spring than you need obviously. What lifter with this spring package?
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Old May 2, 2023 | 09:57 PM
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Johnson’s link bar 2116
I was recommended by the cam manufacturer tu upgrade from .660 to .685
370 ci cnc heads 85mm turbo 8s car 1000hp capable
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Old May 2, 2023 | 09:58 PM
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Originally Posted by Che70velle
It more spring than you need obviously. What lifter with this spring package?
Johnson’s link bar 2116
I was recommended by the cam manufacturer tu upgrade from .660 to .685
370 ci cnc heads 85mm turbo 8s car 1000hp capable
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Old May 3, 2023 | 02:54 PM
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If we go by lift #'s, I have a ton of guys running .750 springs on a 0.6XX cam. Rating a spring by lift is the modern day 3/4 race cam......
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