So I have came up with a build project for my 00" silverado. I've already done a cam swap on it 222/224 about 2 months ago but it's just not enough. I'm wanting to turbo it. And was just wanting to run a single turbo kit from like trick performance. I know I will need forged pistons forsure, but what about rods? Or crank? I know some people use stock rods and crank and just added arp bolts is that a bad idea?. Also what about fuel systems? What will be required to do a good turbo build for a weekend driver? Anyone who has knowledge please chime in.

 

People have made 800 HP on stock gen 3 pistons and rods. If its a mild build, I wouldn't bother tearing into the engine.

Yes, you're going to need more fuel, so you'll need injectors, pump, and regulator.

 

Run it stock unless you got money to burn. As long as you gotta a good tuner and don't get crazy with the timing and boost you'll be good. I've run mine at 14 psi for two years straight with no issue's . I didn't start running into problems until I got around 20psi. And That was on stock head gaskets with 179,000 miles on a 6.0.

 

Okay I'm not wanting to build something crazy, just something that will push over 400hp to the wheels. And my bottom end has 113k on it. Think it will hold or just be better to replace it to be safe and go save time and money on down the road?

 

Spend ur mowny on a good fuel system and Trans and converter setup and either get a denmah turbo kit

 

Or like a s475 turbo with the denmah kit they let u upgrade I believe

 

Also 113k on a 4.8/5.3/6.0 isn't nothing as long regular maintance was done

 

Oil had been regularly changed and everything. Just kinda worried about doing a turbo on a stock bottom end with out any upgrade parts. But again I'm not going to drive it daily and don't plan on running it hard all the time. What is some good fuel system,? And what about intake? I wanna change that to even though the truck one is suppose to flow good

 

400whp won't break a sweat on the stock bottom end as long as the tune is good.

The truck intake is what's on the fastest stock LS short block, no point in upgrading.

For a conservative fuel system, grab a big walbro 400, a good FPR regulator with 1:1 gain (aeromotive, Mallory, and a few others sell them for 100 bucks), and 60-80 lb injectors (Siemens deka work great).

Stock computer can be tuned with HP tuners to keep it clean and simple.

 

When it comes to boosting a engine I don't have a lot of knowledge. And my biggest consern was the pistions and rods and so forth, cause I don't wAnna have to tear it apart of possible but don't wanna have to tear it apart and month down the road cause the pistons are fried either: and my truck has been tuned by hp tuners now for the cam swap. But thinking about getting a dyno tune

 

There are probably well over 100 people pushing 700+ HP on stock rods/pistons. There are a few people pushing Gen 4 rods/pistons up to 4 digits at the flywheel. The LS is a very very stout motor from the factory and can handle a ton of power. 400 whp is child's play for both the stock long block and any of the commonly used turbos here. Chances are, unless you're very conservative, you'll overshoot that goal on your first dyno pull.

As long as you have aftermarket valve springs to go with that cam, you should be fine with almost no other changes to the engine itself. No need to spend the money on forged rods/pistons unless you're looking to make almost twice as much as your goal.

 

Okay good that saves me heart ache of money lol. Yes I have beehive .650 valve springs. Chromoly push rods. And yeah I wanna make at least 400 to 450 to the wheels just something I can pull out and it rip sideways with me, just a nice pretty fast street truck.

 

I plans for it is the turbo kit
Circle d 3000 rpm stall
4.11 gears
Bigger injectors
Ported heads & 3 angle valve job
Dyno tune.
Not including the 222/224 cam, CAI with dual filters, and electric fan already installed and double roller timing chain and I volume oil pump.

 

For forced induction, head work is often a waste of money. Especially at 400whp. Personally, I don't see any reason to upgrade heads with a stock Gen 3 bottom end, since you can make enough power on the stock head castings to make the truck hard to hook on the street.

What I'm trying to tell you, is that there is NO reason to take your engine out, remove your heads, or even your valve covers. With the cam you have, your 5.3 is probably sitting at a 350 HP or so HP at the flywheel with almost no other mods. It would take about 8 PSI to break 400whp with an S475. That's an extremely conservative amount of boost for that turbo. That is with NO other work done to your current setup. Most of the stock head castings will get you a few hundred more HP than your goal before they start to become a restriction.

CAI isn't a term often used with turbos. N/A, a cold air intake is pretty much any intake that places the filter in a place where it'll draw cooler air. With a turbo setup, you're going to end up placing the filter wherever you want. If you place it right in the middle of the engine bay, its still going to make the power you want. Dual filters aren't needed for 400whp.

Keep your current setup. Get an S475. Don't pull the engine, don't remove the heads. Get the circle D converter and a better fuel system. You'll make 400whp first time you put it on the rollers. Chances are, whoever is doing the tune is going to tell you there is a couple hundred more in it if you want to raise the boost.

If you have a 4L60, its going to be the first thing to eventually break. The rear gear ratio is going to depend on what size tire you run, turbos aren't like N/A, they like lower ratios and longer gears.

 

That all makes since. What brand turbo is the s475? And do they make a complete kit? Piping? Inter cooler? Bov?. the denmah turbo kit is running like 900$ I think.

 

The S475 is made by Borg Warner. They make probably one of the most reliable and power-capable turbos out there. Their turbos are a favorite in the 275 tire crowd, and any class with a 76mm turbo restriction.

I mention the S475 specifically because it is capable of almost 1000 flywheel HP and goes for about $700 shipped to your door.

The ebay turbos will hit your power goals as well, and are about half the price. They will take more boost to hit the same power levels, though, and fall a couple of hundred HP short of the S475 when they max out, and that includes the 76mm versions.

As far as kits, you'll have to find something vehicle specific or find someone to weld one for you. As long as you get one that will fit your truck and has a T4 flange, you're at least in the right ballpark.

 

Okay so let's say I get the s475 turbo, what kind of manifold will I need, and piping and cooler and bov? I'm un educated when it comes to this or how to set it up

 

Stock manifolds will work. Flip them around so they face forward. You can have an exhaust shop or local welder weld you up some piping from there.

As far as intercooler, pick one from ebay. You can score a decent sized one that'll flow more than enough for 400whp for less than $150.




There are literally 654196842106947 topics in this section of the forum that'll give you all of the info you need and then more than you want on top of that. Just look around at some of the other builds people are doing.

 

Okay sounds good. Do I just need to flip one of the manifolds or both of them. And what about oil lines and all that