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How much HP?

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Old 01-17-2007, 01:50 PM
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299.1

Didn't realize it was a 4.8L
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Old 01-17-2007, 06:20 PM
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237.67 rwhp
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Old 01-17-2007, 06:36 PM
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260hp
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Old 01-17-2007, 07:43 PM
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280 - 290 is what I figure, I'm hopping to hit the 300 mark if I do, I know I have a great combo for a 4.8.
Anyone know how much the stock 4L60E will hold?
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Old 01-17-2007, 07:49 PM
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Add some 1 5/8" shorties, 2 1/2" exaust, x pipe, ram air tube & some more tweaking and I think I can hit about 325-335 RWHP.
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Old 01-17-2007, 08:02 PM
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270hp
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Old 01-17-2007, 08:15 PM
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I say 267 - not counting what you mentioned in post 15
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Old 01-17-2007, 08:21 PM
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Old 01-17-2007, 08:27 PM
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279 hp
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Old 01-17-2007, 09:04 PM
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Id say around 283 rwhp. Add long tubes and around 300 to the ground. I believe the Zo6 cam is good for 17 to the ground. I have a 2003 5.3 with full bolt ons Long tubes, No cats ud pulley and I am putting down 285 to the ground. So you will definetly need long tubes with that cam. Hope that helps.
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