LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Does #1 have to be at TDC when Opti is Installed???

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Old 10-22-2003, 04:54 PM
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Does #1 have to be at TDC when Opti is Installed???

Does it matter? need quick answer getting dark soon. thanks
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Old 10-22-2003, 04:57 PM
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I do belive so
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Old 10-22-2003, 05:19 PM
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It does not matter what position the cam is in, as long as you place the special slot over the dowel pin. If this is done, your engine will be perfectly timed.
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