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Generation III Internal Engine 1997-2006 LS1 | LS6
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Old 08-30-2005, 09:22 PM
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i have a stock 02 lq9 with stage 2 5.3 heads i want to know if i will have to notch the pistons with a 245/254 duration 647/647 lift 113 lsa 109icl thunder racing cam
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Old 08-30-2005, 09:43 PM
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I think as a general rule of thumb anything over .600 lift you will need to notch your pistons
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Old 08-30-2005, 11:23 PM
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I don't know for sure, But I would have to say hell yes. Thats pretty big. Are the heads milled and what size gaskets are you using?
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