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Old Feb 5, 2009 | 05:50 PM
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just got the truck off the dyno jet. we put the tsp 2.5 5.3 heads milled 2 59cc.the truck has really woken up alot .the tq is very nice.will scan it soon 402.45 rwhp and 372.67 tq on my 08 5.3 full bolt ons
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Old Feb 5, 2009 | 06:03 PM
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This is the first NA 5.3 I've heard of breaking 400 rwhp. Damn!

Full mod list?
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Old Feb 5, 2009 | 06:15 PM
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Damn rick congrats..those are some awesome numbers.
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Old Feb 5, 2009 | 07:32 PM
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congrats on the 400+ mark for the 5.3!
what size cam?
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Old Feb 5, 2009 | 07:50 PM
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Originally Posted by GMCtrk
This is the first NA 5.3 I've heard of breaking 400 rwhp. Damn!

Full mod list?
there's been a few.. mostly nnbs
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Old Feb 5, 2009 | 07:52 PM
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Originally Posted by dlt76028
there's been a few.. mostly nnbs
never heard of em, name a few...
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Old Feb 5, 2009 | 08:03 PM
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Those are some damn good #'s, congrats. First 400hp n/a 5.3 i've heard of too.
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Old Feb 5, 2009 | 08:23 PM
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Originally Posted by bluecajun5.3
never heard of em, name a few...
la tombstone

https://www.performancetrucks.net/fo...d.php?t=411055
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Old Feb 5, 2009 | 08:39 PM
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Must have missed that one lol...impressive
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Old Feb 5, 2009 | 10:27 PM
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08 rcsb 2wd 1/2 ton,5.3,220 cam,tsp heads,lts,ud pulley,cold air,91 tune,3500 edge,stock 373s this was all with the converter unlocked
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