BIG BAD BLACKSS

iTrader: (4)

1/2" deck? How will these hold up in boost/nitrous applications? I was hoping to run 14-16psi and up to a 100-150 shot on top of it? Will these heads hold it?

Chad@LivernoisMotors

I couldn't exactly tell you an exact number what the stock rockers are good too. I would imagine a decent amount, the aftermarket ones offered so far are Jesel, we can order them and install them if a customer wants them. They aren't cheap but as of now there are no rocker options we are aware of.



Give us a call at 313-561-5500, ask to speak to Mike Schropp. Tell him everything your looking for in the Camshaft and he can tell you what would be best for your needs and also the availibility on the Stage 3's.

The chamber volume on the stage 2 is 71cc.We will have a specific chamber voulume for each stage above 2, but they are not scienced out at the time being as specific for LS2 or L92 Blocks. We are waiting on the valves from Manley to weigh them. The heads will be milled for a clean clut, we cannot release how much yet because it depends on the chamber volume.

As of now the stage 2's are ready to go, they have been CNC'd,etc. The only thing we are waiting on is Manley for the valves. GM valves are on national backorder. We should be seeing the Manley valves this week.

With good hardware I dont see the head's having a problem holding up under those applications. I personally would be using ARP head studs for extra insurance, good springs, etc.


The biggest question of all INTAKE RUNNER SIZE. I am working on this and it will be posted tonight. Thanks guys.


Chad @ Livernois Motorsports

1fstGM

iTrader: (13)

What about a solid roller set up? Price, springs, valves, etc...

HotRodV6

iTrader: (6)

Well the stage 3 really seems like it is the best bang for the buck, that can take alot of lift right out of the box, to bad Jesel is the only option for quality rocker arms, i would hate to have to pay as much for the rockers as i did for the heads.

One question i have is, has anybody flowed the stock L76 intake to see what it flows, and to find out if it would be a restriction on these ported heads??

Great work, and i may be doing business with you later this year.

Keep it up

dame

iTrader: (3)

What exactly is there to "work on" .......... Still waiting

PowerShift408

iTrader: (44)

I'm not sold on these L92s yet. I know they flow great numbers and all, but saw a thread the other day where a guy put 480 to the wheels with these heads. He had a smaller cam (230s duration, cant remember lift), but he only put down 11 more ponies than I have on stock 241s...

dame

iTrader: (3)

what size cam do you have?

V6 Bird

iTrader: (15)

Trick flow all the way.

StingrayCrazy

iTrader: (5)

$1795.00 for a set or heads thats as close as you can get to C5R race heads, It's a no brainer...

2c5s

iTrader: (11)

That was me, how big is your cam, how much compression, header size, intake? I would like to see the power you make UNDER the curve.

PowerShift408

iTrader: (44)

I've gotta comp 244/248 612/615 on a 115 LSA. I'll try to post it up today.

Beast96Z

iTrader: (21)

The trickflow's have actually made ample power. The L92's have done nothing as of yet. Hell, even the LS7's have done nothing super spectacular like they were supposed to, so there's no reason why the baby variant of them is going to break any records. Some people are laying alot of blind faith into these things. In my area, stock casting, ported LS1 heads are still putting out faster times than bigger motors with LS7 heads. I think your going to need lots of motor and boost to utilize these heads.

Juiced

iTrader: (2)

Chris don't forget that you have UNTOUCHED heads, not ported heads flowing 30 more cfm on both tthe intake and exhust......

motorbuilt

iTrader: (17)

Im personally feeling there is too much markup and price gouging on the L92's right now. Basically these heads are only $350 new bare......just seems like most of these heads being offered should be about $500 cheaper to be a fair price. I think these companies are making hand over fist on this stuff right now.

But thats how it used to be with LS1 stock casting heads. I remember the days of MTI, ARE etc $3000 stock casting stage 3 heads....now those heads are worth $750 - $1000

evojuiced

They are very competitive at under 2k, no other casting on the market can touch these heads for under 2500, not even AFR 225's, your getting into Ported TEA, or ET heads to touch those numbers unless you have a 4.125 bore and get the ls7 casting....

You have to play to pay, no to mention that livernois has a great rep and plenty of track time to know what works on the LS1.

People use to pay 1600 for LS6 type Ported Patriot heads for a few $$$ more you are getting about 40more cfm and better components.

Beast96Z

iTrader: (21)

That's yet to be determined. You can't make that kind of statement unless you have some backing to hold it up. While the TEA, ET, and AFR heads may cost more, they've all made power and provide a aftermarket casting, not stock.


Livernois does seem to be a stand up shop, and what I say dosen't really have anything to do with them, but more or less the L92 head in general. They may know what works on a LS1, but I don't think anyone has cracked the L92 cam stuff yet.

They did pay $1600, but LS6 castings were $900. The heads may flow 40cfm more, but who's to say there better? Once again, no data out there to go on.

PowerShift408

iTrader: (44)

Comp XE-R 244/248, 612/615 on a 115 lsa.
10.96:1 compression
1 3/4'' Pacesetter longtubes into true duals
LS6 intake

Yes I know it's standard and not sae, not sure how big the difference would be. Couldn't find my best dyno sheet, took it to a car show once and haven't seen it since.

White_Hawk

iTrader: (3)

The numbers don't mean a whole lot uncorrected. I dynoed my bolt on Firehawk in the middle of summer on a dry 75 degree day and the horsepower went from 385 to 370 when it corrected.

-Geoff

Beast96Z

iTrader: (21)

It still shows the curve and what one could realistically expect.

evojuiced

to bad it could be 15-20hp and tq off....

Big difference between 460hp/tq and 440hp/tq