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Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Intake size?

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Old 01-07-2012, 12:25 PM
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Default Intake size?
If I has a LS3 with a 4" TB can I step it down to say 3" or 3.5" tubing for more room?
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Old 01-07-2012, 02:54 PM
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My 5.3 has been running fine with 3" intake piping.
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Old 01-07-2012, 06:50 PM
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The TB is 4" on a 5.3?
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