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Old 05-16-2004, 10:42 AM
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what valve springs are you using with all these huge cams (240 + duration over 600 lift) how long do they last if you street drive them.the ls1-6 heads are limited to valve spring size and i was wondering how you were getting the springs to live with such large cams.
Old 05-16-2004, 10:45 AM
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Originally Posted by juiceman
what valve springs are you using with all these huge cams (240 + duration over 600 lift) how long do they last if you street drive them.the ls1-6 heads are limited to valve spring size and i was wondering how you were getting the springs to live with such large cams.
Crane dual valve springs.
Old 05-16-2004, 01:50 PM
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I'm using rev 1116 doubles. I would think the patriots are the best deal right now.
Old 05-16-2004, 02:12 PM
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How about an answer to his second question...whats the life on those double springs?
Old 05-16-2004, 02:36 PM
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really depends on the cam...tsp claims its possible to get over 20k with patriots and the 231/237 cam because the lobes arent that harsh...with high ramp rate lobes though id think every 12k miles change them.




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