View Full Version : Carb for 6.0

09-29-2011, 09:19 PM
What I want and what I'm going to end up doing are two totally different things but I'm sick of looking at my car and not being able to drive it.
Anyway, I need some help from you guys with some Carb experience, I'm wanting to get 550-600hp with a 6.0, LS3 Heads and a Vic Jr.

The 6.0 will be rebuilt and have ARP Rod and Main bolts.

Can I get 550-600hp on motor with a strong cam or do I need some spray to get me there?
If I need the juice, what would the rings need to be gapped to?

I would like to avoid the juice until I can upgrade the internals but I'm not sure if I can get to 550 with a good Cam and Carb. I've looked but I haven't found much with searching so I'm needin some input, Thanks!

09-29-2011, 09:25 PM
Why 500-600hp? Do you plan on drag racing it?

09-29-2011, 09:37 PM
5-600 because it's a Stock Shortblock and I don't wanna push my luck. Car will be a street/strip vehicle.

09-29-2011, 09:42 PM
Holley 950 should be more then enough

09-29-2011, 09:45 PM
Anyone else for the 950?
How many of you are running the 950 and what numbers are you seeing?

09-29-2011, 10:32 PM
If you are talking FWHP, a set of LS3 heads with a custom grind cam will get you there. 550 HP is not hard to do just need to make sure you can get the pistons fly cut while you are at it.

09-29-2011, 11:18 PM
Yeah I'm talking about fwhp. So I won't have clearance with the Stock Pistons???

If I have to replace the pistons with some that are flycut I might as well spend the extra cash for the added bore and build a 370.
If that's the case, what are the Power Limits on the Stock Rods?

09-29-2011, 11:29 PM
With the LS3 heads, the larger valves require a bit more room if a cam is being used usually. A fly cut is no biggie. The rods will be ok with ARP hardware, if never removed, the stock bolts are ok, i run my stockers to 7200 RPM, but others are not so lucky.

09-29-2011, 11:29 PM
So what would I be able to spin this to with the ARP Bolts? Also, could I have a Cam spec'd where I won't have any PTV Issues?
I would like to leave the 6.0 stock until I have the money to get all the work done at once.

09-30-2011, 12:21 PM

09-30-2011, 12:29 PM
im probably gonna turn mine around 7000 with stock bolts and yes you can get a cam specd out that doesnt require cutting pistons. i had geoff at eps get a cam for me.

09-30-2011, 01:38 PM
Ok, another thing...
Will the cam, that is small enough for clearance, still be enough to reach the HP Goals I'm wanting?

09-30-2011, 01:47 PM
Contact Geoff at EPS, here is a sponsor here, he will be able to tell you more over the phone than any of us here.

09-30-2011, 06:29 PM
Just stick a MS3 in on some L92s and hit it with the sauce. It shall move pretty good.

09-30-2011, 06:42 PM
I don't wanna use the juice if I don't have to, it's just another expense that I can't really afford right now. From the looks of things I can reach my goals with a good Cam and Carb.

78 l92
09-30-2011, 10:06 PM
It depends on what short block you have. I have a vortec l76 same as a ly6 but it is alu block with dod and vvt you can but a really nice size cam in it with out flycutting

09-30-2011, 10:10 PM
I have a 6.0 Iron Block out of a 2000 2500HD (If I remember correctly)

Doug G
10-01-2011, 08:16 AM
I've been looking and got this so far.....rebuilds....

Here is a small list of the most requested engine's and pricing.

LS 1...............3,900.00
LS 2...............4,900.00
LS 3...............5,800.00
LS 3 Hot Cam(480)HP.6,400.00
LS 6...............5,100
LS 7...............13,900

Custom Built LS 3 Holley Carb 572 horse power with starter..6,800 <--looking hard right now :)