Exactly
for me anyway it's the 480hp LS3. Wet sump
then later if you want to go with a blower , you can.

 

Yes there is good info here and I figure this is a place to find out have others tried and what did they run into. "That's a what I like" about visiting this forum. Part dreamers, part doers, part know it alls, part question ask'ers. It's all good. The reality check that we all get here is good for us dreamers and question ask'ers.

No doubt the 2x, 3x numbers to get the super HPs from the vette. I do need/want two or more vettes, but have not yet picked the correct numbers for the mega millions contest. Mega HP requires that I find these correct numbers soon.

So this got me a think'in about the swap, $6k for the LS3, plus install, plus the little mods. I'd have a new motor under warranty (40k on mine now). Sell the LS1 or project motor. I could write the check today but, it would put me on a budget I would not like.

I be at Carlisle on Saturday. If you pass by and overhear someone asking silly questions at some booth about HP gains, say hello. It just might be me. If it's not me, tell them to find me.

 

remember the hot cam version ls3 is 480hp factory direct from gm .this motor is 6,500.00
I think this is a great deal . Headers would put it at 500hp.

 

Read this thread - LS3 Crate change

 

Thanks looks like there are some problems here with the LS3 motor and the changes needed for the swap may not be worth the effort. Who cares about warranty if it is known that it will fail. Sure I could get replacement but the trouble and down time. Maybe z06 motor????

 

(No relation)

http://forums.corvetteforum.com/c5-p...te-engine.html

Guy is selling a new warrantied LS6. Needs the oil pan from the LS1 swapped over. Other then that its a direct swap. Add a mild cam and headers while you're swapping and I think you'd hit that 480 BHP mark no problem.

 

That's interesting that the LS6 is mentioned as bulletproof though the LS3(I imagined would be a superior engine) is not so much LOL. How can that be?

-Alex

 

Yeah I kinda wonder myself. Unless heat is a problem over the other block and/or maybe an oil pump they had in hand and not designed something new. Or the new was just incorrect. I wonder about the change in crankshaft. Why would they do that and have the problem of not being easy backward compatible @ $6k a pop, you'd think someone would recognize this as a revenue stream. Oh well I'm going to Carlisle this weekend and maybe someone there can enlighten me. Or maybe not.

 

I think the ls3 is just fine

 

BEAN COUNTERS.

cheap parts at first


For street use it is great, racing or sustained high performance driving is another story.

 

They have. Many changes were made to the LS3.

 

I was just going for street use with the ls3

 

I was thinking this also. But if therre are too many mods to adapt to C5 then what's the use. Maybe instead of selling engines they want the whole car? You'd think selling both would be worthwhile. If GM can sell motors for $6k then there must be profit. Oh well!

 

Then you will be cool

The ones that want bang were beat on purity good

 

Does GM offer an LS2 crate motor package as well? If so that might be another option to look into as it's probably going to be cheaper and from what I understand the LS2 is basically just a 6.0L version of the 2001 LS6 (in other words I thought that I read somewhere that the LS2 uses the same heads and cam-or very similar-as the 2001 LS6) so it should be just as durable.

 

Personally, I don't see the point in doing this. Forging the bottom end on the LS1/6 is cheaper and heads/cam only costs $2K from TSP. A 480HP LS3 is only going to make 408RWHP through a manual. Whereas you can get 430RW from an LS6 with heads/cam/headers and there's no special harnesses, adapters, fabrication or dry sump needed.
Here's what I'd do:

$2,339.99 - TSP 347 Rotating Assembly (Eagle Rods/ARP 2000 bolts/Eagle Crank/Diamond -2cc Pistons/balanced)
$2,084.97 - TSP PRC Stage 2.5 L92 Heads + 233/239 Cam + Double roller adjustable Timing Chain + LS6 ported oil pump
$859.99 - Kooks 1 7/8" LT headers
$759.99 - Kooks X-Pipe (w/ cats cause I live in Cali)
$1,589.98 - Ported FAST 92 with PTM 92mm throttle body and PnP harness.
$500 - Tune

Total = $8,134.92

This setup should yield about 470RW. And will have the potential to go WAY more than that. If you still want to fit it all within the $6500 budget, get rid of the forged internals:

$5,794.93

And you'll be fine with that amount of power still. Keep in mind these are all NEW parts too. If you were to get some of these things like the intake and headers used, you could save a fortune and have a VERY fast and reliable car.

I think the LS3 would be a waste. More or less it'd be bragging right only.

EDIT: Keep in mind that a stock LS1 is still pretty safe for 540-550RWHP as long as it's tuned right. But forging the internals gives you the option to go with a big blower or turbo down the line.