Silverado2469

iTrader: (1)

I found a shop thats going to be doing a swap in my truck, 2001 silverado reg cab. Getting the 4l80e. And thr 6.0l. I want 400. To the wheels. Price is 2750. Out the door with a cam Install,(I bring the cam) and tuned. Or I can get the 6.2l for 4750. Same thing. Cammed tuned. And out the door. With a rebuilt 4l80e. And a motor with less than 70k. Is the 6.2l worth the extra 2k? I know stock for stock. Its a much better engine. Future plans for the truck will be a turbo. The cam will be a mild cam. Biggest being the tr220. Most likely a split cam like a 218/220. Ive been looking uo dynos. And ive found bolt on 6m0 dyno at roughly 340-350. Ive seen 2 6.2l bolt on at about 345 as well. That doesnt seem right that they are the same when the 6.2l is so much faster stock for stock? Anyways thanks for the advice guys.

newschool72

iTrader: (12)

The 6.2 is going to breath better with bigger heads, and probably smaller heads too. The rectangular port heads are a little more finicky about cam timing . If your intending to turbo the truck down the road, either one will be fine but if you plan to run big boost , an iron block will survive longer. Am I right in assuming the 6.0 is iron and the 6.2 is aluminum? After all that confusing crap I just said, I am a big bore fan and if it were me, the 6.2 would get the nod. 2K is a lot of difference but the bigger bore will pay off down the road if you get serious about making power, at least if the turbo route doesn't pan out.

Silverado2469

iTrader: (1)

Im not sure if one is aluminum or iron. Im assuming its gonna be an lq4 6.0. And most likely aluminum 6.2l. Only thing I was thinking wad for a like 2500. I could easily build a turbo for the 6L and make way more than a cammed 6.2l. For about the same price. I agree with the while displacement thing. Im not sure what he would charge. But if im gonna go big. Why not put an 8.1 in it? Hahaha.

redefined

Sorry but you won't be able to do a good turbo kit for $2k. I think you need to really look at the ultimate goal for the vehicle, is boost 100% in play here? If so I'd go with the 6.0 iron block, if it's not then I'd go with a 6.2 aluminum block.

Decisions decisions.

Silverado2469

iTrader: (1)

It may not be a garret turbo. But with an ON3 turbo, all the work done by me. 2k for a turbo kit is very obtainable. Boost is a definte goal yes. It may not be for a year or so. But it will eventually be boosted. So ill go with the 6.0. Save the 2k. And piece together a turbo. Thanks for the advice guys. Does 2750 sound like a good price on a motor swap. (With less than 70k, a 4l80e. Just rebuilt. He will also install the cam I select. And tune it. Out the door. 2750. With a 1 year warranty. And he supplies both engine. And trans.

newschool72

iTrader: (12)

Yes, a smoken good deal. The labor and 1 year warranty makes it a steal !

Silverado2469

iTrader: (1)

Sweet. Thats what I thought. As the 4l80e instal is a pita to do without a lift ive been told.

redefined

I'd agree with this. Can't seem to find a local LQ4/9 for less than $2200 with harness and ECU. That being said, installed is a killer deal

I have no issues with budget DIY turbo builds, just make sure not to skimp places or you'll be doing things over 2 and 3 times causing bigger issues.

Looking forward to a build thread!!

Silverado2469

iTrader: (1)

I should be picking up over time in january. (Guy at work is getting his hip replaced) should buy me about 8 weeks of 60 hour weeks. Im allowed to do tax excempt 4 times a year. That will pay for the cam, and motor swap and trans swap. So ill start a build tgread hopefully in mid january.

So I want to make 400rwhp. Ive been looking up 6.0 dyno's. And I have to say ive been dissapointed. I thought 400 would be reasonable with a cam and full bolt ons. Stock heads. But its looking like ill get about 350. Which is a good number. But I wanted more. Any ideas on a cam that might get me to 400? I want to keep stock stall so I wont go bigger than a tr220. Was thinking of the 218/220 ~590-6xx lift. Comp cams makes a cam about that size. And ive heard good reports out of the 5.3l. And it should allow me to stay with the stock stall. If I can afford it when I get it in ill put a 3200 in and go with a little bigger cam. But most likely wont be able to put another grand down on a stall. Any ideas?

MX6.0

400 should be easy. My 6.0 with stock LS3 heads and a small cam just put down 465/448 to the wheels. Pretty cheap way to get good power out of the 6.0's

redefined

^^ I was going to say, simple bolt ons will get you over 400. Lots in the 500's with heads from what I recall reading.

Silverado2469

iTrader: (1)

What cam are you running? Im going to be running the ls6 heads. Keeping the truck intake. Ive been watching youtube dynos. And people are barely breaking 400. And im confused. I see people who say 400 all day long with just a mild cam. And 450+ with cam and heads and full bolt ons. I was thinking of doing a kinda small cam. Because of californias smog rules. And rhis being my daily. But when its time to smog im gonna seitch in a stock 5.3l and get it smogged then put this back in lol. Or just try and smog it with the cam.

To sum up. What cam and heads are you running to make thay kind of power. That would be perfect!

MX6.0

It's an EPS 222/230 .596/.608 114+2
Stock LS3 top end. But the stock LS6 top end should be able to get it done.

dondb

iTrader: (1)

Check out this build….it's going to depend if your running the LQ4 or LQ9 due to piston shape and compression.
http://www.performancetrucks.net/for...ild-up-470269/

Silverado2469

iTrader: (1)

Where would I pick up a ls3 top end? I like that cam. Do you have any sound clips of it? Is it real rough? I may pick up the stock ls3 top end. If I can get one cheap. If not ill go with the 243 heads. From the ls6.

MX6.0

I know the LS3 heads are a little more than they were when I picked mine up. Pace seems to be about the cheapest around.

http://paceperformance.com/i-6255375...-assembly.html

Keep in mind that the 243 heads are in pretty high demand from the LS1 guys, so selling them will make up most of the cost of the brand new LS3 heads (I sold mine for $600 with aftermarket springs). The LS3 heads also come fully assembled, so when you swap out the OEM LS3 springs/retainers/locks/seals, you can also sell those...I think I got around $100 for mine.

As for the intake, you can find them on Ebay all the time. I think I ended up paying about $300 shipped for mine. Here's one.

http://www.ebay.com/itm/LS3-Intake-Manifold-Injectors-Complete-2012-Camaro-SS-NO-RESERVE-/161178855527?pt=Motors_Car_Truck_Parts_Accessories&hash=item2587022867&vxp=mtr
So for less than the price of a FAST intake for your LS6, you can have a pretty strong performing top end. Is it the biggest and baddest top end combo out there? NO.. but its a pretty damn good bang for the buck.

And despite when you might hear about the LS3 heads, you can still get a healthy torque curve out of them.




Here's a couple sound clips for you. It's a fairly tame cam. I lowered the idle down to 650 so it has a more pronounced lope. At the normal 800-900 you can barely hear it.

Silverado2469

iTrader: (1)

I appreciate all the help. I will be using that cam most likely. Sounds good. Makes great power. But idk if ill have the money to do the ls3 top end. So after looking for some 243 heads. I realized id be in about 2k for a fully cnced set. So I stsrted looking around and for 1k. I can have a set of cnced 862. The 5.3l heads. 62cc chamber. Running about 11.5:1 or so? And they so flow over 300 at. 600 lift. The ls3 heads out flow them. But the 243/317 heads only out flow them by like 11cfm at 600. They'd not with the extra Grand.

So best scenario. Ls3 top end. Worst scenario. Stock 317's. Eps cam. 375whp. Later on ls3 stuff. Most likely I'll end up with the 862 castings to start. Eps cam. And hopefully break 400. Then switch to the ls3 stuff. What do you guys think? Ill be running 91 octane. Is 11.5:1 to high for 91?

Edit: after looking at flow numbers of the ls3. And looking online. Used ls3 heads. Roughly 450-700. Used ls3 intake mani. Roughly 450-700. So for 1400 tops. I have the way better flowing top end. So ill be going that route. It may take me an additional month to fet them and do the build. But it will be worth the wait.

So ill do the lq4. Ls3 top end. Eps 222/231 cam. And with a conservative tune ill make 425+ thanks for all the helo guys. Look out for a build thread next. Just waiting on someone to buy my zx6r I have up. And then january I get some overtime. Between the two. Ill have a nice 4l80e. A nice lq4. And hopefully making 425++.

Silverado2469

iTrader: (1)

Okay so I just sold my street bike I had up for sale. So ill be doing the motor and trans swap. I didnt get as much as I wanted to. So ill be doing the swap lq9 4l80e. And the eps cam 222/230. Stock 317 heads. Intake. Dual springs. Hardend pushrods. Going to spin it to about 6200. And hope for about 380. January 14th. I start 60 hours a week for about 8 weeks. Ill then buy the heads and maybe a metal ported Intake. And hope for about 500. Thanks for all the help guys. I really appreciate your time. Ill be posting up a build thread this week sometime. Ill be talking to the people on thursday About the swap. As long as everything is kosher. Ill be leaving it there. And picking it up a week or so later.

newschool72

iTrader: (12)

That EPS cam will be far from ideal with the 317s. Most agree that on "stock" LS3 heads a split of around 10* is wanted to help the less than ideal exhaust valve flow. With the 317s, you will make better power with a tighter split. Im running a custom grind with 220-230 at .050 on a 108+4 in my LS3, carb intake (dual plane) set up, and it make excellent power EVERYWHERE ! From 2K to 7K, the car pulls the same. If you are going to swap heads soon, Id go ahead and do the wide split cam. If you are not sure you will swap to LS3s, get a cam more suited to the cat heads and you will be much happier.

Silverado2469

iTrader: (1)

Okay. Ill what would be a good cam for the 317's? Gonna be a completely stock motor except for headers, exhaust. I should be swapping to the ls3 top end. But things come up all the time. And I may not be able to.

Edit: 12/30/13- 0220 hours

After doing some more looking to try and find a cam that should make decent power. I found a comp cam I think I might like to try. For the 317 heads. And that mat still work well with the ls3 heads if I put those on. Its a 224-230 581- 580. 114. After doing a little research on that cam. I saw a ls1 make 422 rwhp with it. It had ls6 heads. Intake. And a couple other little mods. So I figure the 317's on an lq9 which is 10.1:1 compression. I may put the .040 gaskey on it. To raise it to about 10.5:1 should easily make 380-400 with that cam. And should make 425-440 with the ls3 heads/intake? Anyways. My only question is will I be able to use the stock converter with this cam? Comp says it makes power from 2k-7k if so. A converter would help but isnt necessary right? And how about fuel? Will the stock Injectors work? Or do I need bigger? If I do how much bigger? I found a set of the 8.1l (30lb) or (32lb)? For about 130. I was looking for the 8.1l marine injectors. But cant find any for under 500. Not payong 500 for 42lb injectors.