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Thread: trans am BUILD THREAD

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  1. 03-28-2013 #1
    APPLES355
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    The factory LT1 starter should be enough to start that motor. i have 11.3:1 on my 406 and my friend has a 383 LT1 with 11.5:1 with the factory LT1 starter without any problems. both cars also have six speeds. unless you are running higher compression than that.
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  2. 03-28-2013 #2
    garyLT1
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    Well my heads are milled and I have the deck milled and I'm running just forged flat tops with 2 valve relief. I'm getting 12.5 volts to the starter when ignition is turned, the battery loaded tested great, and it starts to turn over then just after maybe one full cycle the motor stops and then the starter can't turn it then if you try again it does same thing rotates once and then nothing so... I figured my compression is to high the starter.. But the is brand new napa premium just got it new 2 weeks ago.
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