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Thread: building a motor

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  1. #1
    Join Date
    Sep 2006
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    THE 405
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    here is a somewhat local guy with an procharged ls396...seems to be working ok for him
    5th Speed Density tune, results - GM Performance Forums
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
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  2. #2
    Join Date
    Feb 2004
    Location
    Western, KY
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    433
    tbss you never did really answer my question what would be the main oilng concern?
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    Maybe STOCK
    "My lugnuts require more torque than your ricer is ever going to produce"
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  3. #3
    Join Date
    Dec 2007
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    3,429
    Any LS motor with a stroke of 4.100 or bigger is going to have oiling issues... every LS motor for that matter does (couple of exceptions but those blocks are 2grand or more). High pressure/volume oil pumps are just band-aids. Do you know the messurements of the bore top to bottom on a 5.3? The bottom of the shirt on the piston will be out of the bore a long way at BDC and like it was stated by others also... there's alot of stress on everything with the angles that would be going on in that setup and you might be adding boost to this as well? If you want an all out racer that will last one season(maybe) then have to be gone thru once or twice a year, then dare to be differant. I say go with what is proven but it's your money, time and heartache... I've been to the school of hard knocks, trust me.

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