before building for a better motor, few questions.
#26
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Join Date: 09-15-11
Location: Shelton, CT
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If you're gonna build it, at least put in better valves and valve springs. Makes a world of difference. The stock ecotec redlines at 6500 rpm, but valve float starts around 6250. Valve springs will cure that and new valves will make sure you can handle higher outputs when you're ready for it. Might as well do it while the engine's apart rather than tearing the head off a second time to have it done anyways.
#34
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Join Date: 10-10-10
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I spent a lot of money rebuilding my car. Halfway through, I realized that my car was going to.be down for even longer so I bought valves, springs, retainers, seats, seals, guides, caps. Yea it set me back quite a bit but its definitely worth the peace of mind
#35
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tundraboarder666 floated anytime above ~6000 but he was pushing 15-18 psi.If you are NA you won't float till about 7400.I took mine to 7000 NA with no issues and 7300 on boost with no issues all on stock valvetrain.Now I have 82# springs and rev to 7600.She's a happy camper
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