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

 

How much is it?

 

x2...

 

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?

 

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.

 

you all new to the internet, took me three seconds to search the kit #

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



$2899

 

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.

 

Dam that's some serious cash I think there might be a better way to get to that desired hp

 

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

 

At the bottom of the first link, it says it adds 50-75 horsepower. That's the number I'm going to believe....