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Old 05-26-2011, 02:08 PM   #1
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Default Trick Flow Top-End Engine Kit for 5.3

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck
TFS-K305-455-425

im planning on gettin this setup in august an would luv yalls opinion on it an also what possible et times i could expect with a 700r4 n 3.73 gears. heres a lil info on the kit an also a link at bottom

GenX® 205, CNC Ported, Aluminum, Assembled, 58cc CNC Chamber,
Track Max hydraulic roller camshaft 216 int./220 exh.(TFS-30602001),
chromemoly pushrods (TFS-21407500), Harland Sharp roller rocker arms

it said it makes 456hp on stock GM LS truck intake manifold and 78mm throttle body. heres the link

http://www.trickflow.com/partdetail....5&autoview=sku
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Old 05-26-2011, 05:01 PM   #2
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How much is it?
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Old 05-26-2011, 05:49 PM   #3
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How much is it?
x2...
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Old 05-26-2011, 05:54 PM   #4
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Is that hp at the crank or rwhp? IMO I don't see making 460+rwhp with that kit on a 5.3 but it might but with a 6.0. How much is the kit?
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Old 05-26-2011, 06:16 PM   #5
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The kit on summitracing is 2900. So I figure $3200 shipped tax n all. An i would say 450 crank hp. so prob 400 at the wheel. I want cuz its takes the guess work out instead up mix n matchin.
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Old 05-26-2011, 06:17 PM   #6
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you all new to the internet, took me three seconds to search the kit #

http://www.summitracing.com/parts/TFS-K305-455-425/



$2899
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Old 05-26-2011, 06:30 PM   #7
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Yeah its kinda pricy. Correct it is rated at Crank HP for the kit.

You could just skip the top end kit and get a custom turbo kit for $2500 or so non intercooled from like Kbracing. You will need a little more funds though for the supporting mods.

Some guys will say just put that money towards a 6.0 and swap engines.

It's not unheard of to get a 5.3 into the low 12's with a good combo.

Idk what you are after but good luck with everything.
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Old 05-26-2011, 06:32 PM   #8
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you all new to the internet, took me three seconds to search the kit #

http://www.summitracing.com/parts/TFS-K305-455-425/



$2899
Dam that's some serious cash I think there might be a better way to get to that desired hp
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Old 05-26-2011, 09:01 PM   #9
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Originally Posted by jrmchevyman View Post
Yeah its kinda pricy. Correct it is rated at Crank HP for the kit.

You could just skip the top end kit and get a custom turbo kit for $2500 or so non intercooled from like Kbracing. You will need a little more funds though for the supporting mods.

Some guys will say just put that money towards a 6.0 and swap engines.

It's not unheard of to get a 5.3 into the low 12's with a good combo.

Idk what you are after but good luck with everything.
Ya but eventually have to update the topend. Already put 5g into the 5.3 swap so stay wit this. An if I ever decide to use no2 I'm sure the top items will handle it. Thanx for info though
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Old 05-26-2011, 09:22 PM   #10
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At the bottom of the first link, it says it adds 50-75 horsepower. That's the number I'm going to believe....
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Old 05-26-2011, 09:22 PM
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