How much N/A power can you get from the LS3?
 

I figure this is probably a noob question (soz!) but I looked around and couldn't really find anything. I was wondering how much power can reasonably be gotten from a naturally aspirated LS3? I'm talking pretty aggressive cam (something like stage 2C from Livernois), fast intake manifold, CNC ported heads, headers (w/ high flow cats), cat back exhaust, good CAI and a good tune. How much power could you expect to make with those mods? And also, this is somewhat unrelated, but how much does it cost to stroke the engine to ~416 CID, and has anybody raised the compression to 11:1? Any worthwhile power gains?
Thanks again for putting up with my noobiness! You can just link me to a thread that explains is well if you like! Thank you :)

without upping the displacement 520-530 is pretty max'd out. Upward of 600 if you up the displacement.

Sweet thanks, do you know how much it usually runs to have a 416 stroker installed by someone who knows what they're doing?
Nice challenger BTW! (If that's yours)

I 2nd this. A resleved and stroked LS3 block with big bore aftermarket heads, monster cam and Fast 102/102 could probably get you 600rwhp but on a stock shortblock 520rwhp is about the max. A bolt on ECS or Whipple could give you the same 600rwhp on a otherwise stock longblock.

Damn he was talking RWHP? I think I could *live* with 520 haha :)
Either of you guys know how much stroking costs? For 416 or 427? I've looked a ton online but can't get a straight answer!
And any information on raising the compression? Or is it not a big enough change for it to make a difference? Thanks again :)

buying a short black runs 4500-5000 and then you have install costs unless doing it yourself.

But you really need a good set of heads/cam/headers to maximize your new ound displacement.

if you are thinking of a NA setup, id go a 429 with a LS7 top end.

and yes, there are always benefits of upping the compression on a NA setup.

I hit 501 with the mods in my sig. Like the OP said..... if I did an UD pulley, ported heads, TB, and a few other mods, I would guess 520-530.....

getting to 480-495 is relatively easy. Getting the last 30-40 becomes expensive.

Cool, thanks for all the good info, and since I'm a noob (as you can tell) what exactly do you mean by "LS7 top end", intakes or what? And do you know the going rate for selling an LS3 with just 25K miles on it? To recover some of the cost.

Thanks rage :)

So Camper, do you think FI would probably be the way to go? I was looking at the turbonetics single turbo kit, makes about 560 RWHP, and is 7k, or should I look elsewhere for a better deal?

I would do the ECS kit, best HP per $ and great support from the fellas at ECS. http://www.camaro5.com/forums/showthread.php?t=265078

florida speed has a great deal right now. $5500-6000 with fuel upgrades I believe.

Cool thanks, ya that does seem like a really good deal, is it same to assume that with LT Heads and a cat back 700 hp at the engine wouldn't be a problem?

that kit has seen upwards of 800-1000 with the correct supporting mods.

It has unlimited potential, but i'd start with the base and go from there. There is a ton to learn and i'd start doing research before jumping in to deep.

Speaking of ECS...mine goes in next week :headbang: