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SI3 cam?'s

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Old 12-18-2006, 10:28 AM
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Default SI3 cam?'s

224 224 .581 .581 114
Thinking of going with this cam.
Which valve springs/ pushrods would u guys recommend for
this application??
Old 12-18-2006, 10:29 AM
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patriot golds, or prc duals. which ever you find cheapest. or look for sponsor sale items.
Old 12-18-2006, 12:23 PM
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what should i expect hp wise w/ this cam??? (Im thinkin a little under 400rwhp)
Old 12-18-2006, 04:53 PM
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t t t
Old 12-18-2006, 06:02 PM
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Dont go duals with that cam. Beehive springs are much better. They dont surge like conventional springs and provide better valve train stability. Comp 918s are good for .600".
Old 12-18-2006, 06:34 PM
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Originally Posted by Oh4GTO
Dont go duals with that cam. Beehive springs are much better. They dont surge like conventional springs and provide better valve train stability. Comp 918s are good for .600".
i was actually looking into the comp 918's
Thank you fo your feedback!
Old 12-18-2006, 08:34 PM
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patriot Golds I wouldn't trust a single spring with that lift. I run the max of 573 lift and had some 918s break. I was lucky a valve didn't drop. Duals are the safer way to go.
Old 12-18-2006, 08:55 PM
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918's are fine for your application. when they came out with the dual spring they lowered the lift rate of the 918's to .600 from .625- spring is the same. Just keep an eye on the mileage on the springs and check them every now and then- you should be doing that with aftermarket springs.

as far as pushrods go the 7.4's would be the ones you would need.
Old 12-18-2006, 10:19 PM
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We have a hand full of LS1s running SI3 with 918 springs. Good street manners with that cam too.
Old 12-19-2006, 11:22 AM
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thanks for all the feedback guys



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