Ok, after all the input you guys gave me I reconsidered my expectations and have some new questions. Here is Part 2.

Here is what I'm looking for:
-LS1 - preferred.
-no Forced Ind, no juice
-no HUGE nasty cam - moderate is ok
-Street driveable and reliable - this is the key
-430-440 rwhp @ 20% driveline loss works to ~ 540-550 flywheel hp.
-basically be able to take almost any other street car (except maybe a blown viper)

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My definition of streetable: I'd be able to take the car anywhere I do now. Movies, mall, dragstrip, Burger King drive thru. This won't be a daily driver anymore, however I still will drive it 2-3 times a week. I don't care about gas mileage as I won't make any long trips in this car. I also don't want a cam SO big that I have to worry about the car stalling out on me. I want to keep the stock vehicle weight and AC.
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Here is what I will be doing in preparation:
-high strength aluminum driveshaft
-Stage 2 4L60E (600hp, 650 ftlbs) from cmotorsports.com
-Vig 3000 stall
-tranny cooler
-suspension to handle the power
-Rearend......???


Here are my questions:
1. Difference between 9" and 12 bolt? What spline axles to go with and why?
2. Where can I find forged internals for a 408 you guys suggested?
3. If i went to a 5.3L and punched out to 6.0L, that is 408 cubes right? So its not an LS1 powered car anymore correct?
4. If so, can you punch out an LS1 to approximate that? I know they have stroked LS1's in the 420 cubes range

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Part of the problem of my first unrealistic expectations is that I haven't experienced that kind of power before, so its hard to know what is "enough". Remember this is going to be a street car that I take to the track once or twice a month. I've ridden in a high 11s car, but as a passenger (which always makes it feel faster), and it was fast, but I want faster.
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PS. How much do you guys think it will cost? Engine build, labor, tuning, & install. I'm doing everything else before hand. Also I'll have all the usual bolts ons intake and exhaust, etc.

 

You can't just "punch out" a 5.3 to a 6.0.

JUST BUY A 6.0!!!!

 

sorry, someone told me truck motor and I assumed the 5.3L. What is the designation for the truck 6.0L motor. What is the cubic inches on that motor?

 

What do you consider a "big" cam? I DD our MS3(237/242, .603/.609 113LSA)
It's my only mode of transportation.

The only problem I have is that you want all this power and your putting restrictions with it(also read your other post). I am running a large cam with stock heads and I'm putting down 400RW, but not eveyone is going to. The MS3 generally picks up ~65RW. In an A4 it might be closer to 60RW. I'm not saying it's impossible but I don't think your going to reach your goal with a mild cam. You're going to need an agressive cam with ALL the bolts-ons to allow the setup to breath. You may even have to look into a FAST 90mm setup. Remember that the 12-Bolt or 9" and the stall are going to eat up some power as well.

The last couple of setups I've seen on an A4 with the PRC heads/233/239 did ~420RW unlocked with 12-bolt. We carry 12-bolts, heads/cam setups, and stroker motors. They all vary in prices, it just depends on what you want. You just need to decide if you want an aggressive setup or a mild one since it's a DD. We can get you into the right package, we just need to know which direction you want to go. Feel free to give us a call or email us if you have any questions!

Thanks!

Brian

 

To get that will require a cam big enough to drive you crazy with the lope, gas smell, surging and constant shaking in the car.

Then again, some people like that.

 

430hp doesn't even require a new block

and the 6.0L block is just that...the 6.0L truck block, my dad has one in his 04 Silverado.

now it would probably help to get more displacement since you don't want a big cam.

so i suggest a stroked LS1 block...the one you currently have...i think they stroke out to 383 fairly easily. a low 230 cam, some heads that flow around 300cfm at .600" lift (PRC 2.5 from www.texas-speed.com) and a good dyno tune.
the tune should take care of the surge, the lope..well that just is part of the fun.


as i think i stated in the other thread. i'm running the texas speed "torquer cam", which is 233/233 .589" lift on stock heads and making nearly 400hp to the wheels.
a good set of heads would put me at around 425rwhp.

put a similar or slightly bigger cam on a bigger displacement (in effect mellowing out the cam) and you should be SET.

no need for a crazy 408...or forged internals...

 

Since streetable is more what you are looking for then here is my suggestion.

Forget about hitting xxx rwhp. Dyno numbers are more for the M6 guys anyway. Start by getting all the bolt-ons:

Lid, catback, LT headers with catted Y-pipe, 3500 stall torque converter, tranny cooler, shift kit, 3.73 gears, basic suspension upgrades, ported TB and maybe a CAI.

Then get a nice head/cam package from someone like TSP. A very good mid range power cam that is very streetable and still barely emmisions friendly is the 224/224 on a 114 lsa.

Top that off with a good tune and drag radials and you should have one hell of a fast daily driver with decent street manners.

 

I already have intake and full exhaust (sig). The whole tranny will have to be replaced, 3.42 gears are going in it. Already have basic suspension and a CIA. And it isn't going to be a daily driver. Maybe like 1-2 times a week. What you listed will be maybe 360-390 rwhp, and I've ridden in a car with that. I'm looking for more power.

I think I'm gonna go with a LS2 408 stroker.

 

Good luck with that.