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The 4.8 just isn't enough, time for a 5.7 build, but I need some opinions

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Old Apr 11, 2009 | 03:33 PM
  #51  
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what shop are you taking it to? i'm thinkin of doin a forged ls1 in the near future.
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Old Apr 11, 2009 | 03:35 PM
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Originally Posted by dlt76028
all new sensors is going to be pricey...
hmmm, i was thinking coolant, oil, crank, knock, etc...

Originally Posted by 05stepside
what shop are you taking it to? i'm thinkin of doin a forged ls1 in the near future.
I dunno, Mcfarland is recommending me one, machine work he said was like $400ish on his friends iron 5.7....
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Old Apr 11, 2009 | 03:40 PM
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Originally Posted by 05stepside
how did you slice it? and sometime can i come over and get my truck logged? just for an update in your computer. possibly next weekend?
.
Maybe next saturday, my Future-Mother-In-Law will be here, but they are going to a wedding shower on saturday..
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Old Apr 11, 2009 | 03:41 PM
  #54  
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sweet! i like that price better than what i was thinkin. so what numbers are you hoping to get. track and power?
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Old Apr 11, 2009 | 03:42 PM
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Originally Posted by BlackGMC
.
Maybe next saturday, my Future-Mother-In-Law will be here, but they are going to a wedding shower on saturday..
i'll give you a call next saturday then.
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Old Apr 11, 2009 | 04:03 PM
  #56  
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I don't think that you'll need all new sensors, they seem to hold up pretty well. I'd maybe get an oil pressure sensor since they're prone to breaking upon engine removal, and seem to be the one sensor that will sometimes wear out and/or be a little less than accurate. The crank and cam sensors are basically magnets, and if they were bad you would have runability problems that would be quite evident. Coolant temp sensor is a resistor, and you can check the O2 sensors with a scan tool and make sure that there are something like 8 cross counts within 10 seconds. Basically, if the O2 sensors are switching from rich to lean rapidly with the engine revving at 2500 rpm, they are working properly. You could maybe do the O2 sensors for piece of mind. Of course if you want to replace them all to make you feel better that you're getting optimal signals to the PCM, by all means do so. My opinion is that it's not necessary though
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Old Apr 11, 2009 | 04:55 PM
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^^^^ thats what i figured. thats why we have scan tools, if somethings wrong we can usually come pretty close to pinpointing it.
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Old Apr 11, 2009 | 05:52 PM
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maybe you should swap to a bigger cam
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Old Apr 11, 2009 | 06:42 PM
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Originally Posted by dug
maybe you should swap to a bigger cam

Are you talking to me?
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Old Apr 11, 2009 | 06:59 PM
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Goodluck with your build Corey.
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