LS1derfull

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 01-Z:
<strong>Does anyone have flow charts on these and a stage 2 LS1 head?
See,I already have a set of 98 heads and the 01's that are on my car.

I am looking for what will bring me the most power.I like these LS6 heads,
cause I will need them down the road(more cubic inches).

I may just send the 98's to TEA for a stage 2 package.I'll do nice valve covers
and relocate the coil packs.Just exploring all the options.

Which head will bring me the most power?
Feel free to also give me cam suggestions.

Thanks</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I just started porting a bare set of LS6 heads today and let me tell you these heads are something that LS1 head will never be. Anyone who tells you LS6 head is not the ultimate head for max power doesnt know anything about airflow and LS1 powermaking. These babies are awesome and can be adapted to any LS1 based performance application. I say they are worth the extra expense. I dont understand why they are not way more popular.

MysticZ28

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by gator's 99TA:
<strong>i REALLY want to see these heads on a full bolt on and programed car. i think these would work REALLY well!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'll let everyone know ... I have set coming in and am going to match them up with a Hot Cam on a full bolt on '01.

I'll get some numbers with stock mainfolds and cats, then put my FLPS back on.

<small>[ December 09, 2002, 12:25 AM: Message edited by: MysticZ28 ]</small>

Nabbs

I've been leaning towards the 02 LS6 CNC heads and 02 LS6 cam (no flames please) for a total "off the GM shelf" heads/cam upgrade (already have the intake).

I am wondering what I need in terms of gaskets, push rods, and any other assorted misc. items. My goal is to try and use GM or GM perf parts exclusively (except for the plugs, wires, and some secondary misc stuff). When it comes to this stuff my understanding is extremely limited, so any advice and help would be appreciated.

TIA,

-N

Black Sunshine/ 00SS

iTrader: (1)

I dont know what cam the guy has, but I know someone who is running these heads. I have witnessed his car (about 3250 lbs) run 10.7@125. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

Slowhawk

iTrader: (12)

250cc's <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Thats a little high for a 310cfm at .60 lift.
I just recieved the bare LS6's.Combustion is 64cc with 01 valves.The heads flowed 286cfm at .55 lift with no work..With a little work they flowed 300cfm at .55 with stock 01 valves These Heads rock.By the time there done I would think 310-320cfm at .550 will not be a problem on stock size valves without hooging them out to 250cc intake runner.

LS1derfull

Slowhawk, i agree, and thanks for the usefull info! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Slowhawk

iTrader: (12)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong>Slowhawk, i agree, and thanks for the usefull info! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I learn from the best <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Nabbs

Don and Jeff,

Looks like I'm next:

1. 7.350 Length .050 Short LS1 Manley Pushrods
$5.75 $92.00
Part Number MAN25751

Remove Item Qty:

--------------------------------------------------------------------------------

2. LS6 CNC Ported Assembled Aluminum Cylinder Heads
$985.00 $1,970.00
Part Number 88958622

Remove Item Qty:

--------------------------------------------------------------------------------

3. LS6 2002 Z06, 204/218 Duration @ 0.050. Hydraulic Roller Camshaft
$185.00 $185.00
Part Number 12565308

Remove Item Qty:

--------------------------------------------------------------------------------

Shipping and Handling: $24.75

Grand Total: $2,271.75

Any thoughts on anything else I should be picking up to make this swap work?

-N

LS1derfull

Nabbs, how about head studs, and i like Fel Pro race head gaskets also.

Nabbs

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong>Nabbs, how about head studs, and i like Fel Pro race head gaskets also.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Jeff,

Are those chrome moly pushrods correct? I know that I need to go with a shorter pushrod, is the length right?

Hook me up with some part numbers for both the studs and gaskets. What rr, is it worth switching to 1.8s? I saw PSJ's post re: 1.8s and the Z06 heads, I'm not sure I'll have the clearance.

Now all I need is to see if you and/or Don want to help me do a heads/cam swap <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Thanks!

-N

Nabbs

Erp...just to add...SDPC has head gaskets for the LS6 (the GM stockers)

GM Performance Head Gaskets
-------------------------------------------------

Part # Part Name Price
12498544 2002 and Newer LS1 / LS6 Head Gasket Kit $24.25 More Info Add to Order

Here's what they have for head studs:

ARP LS1 Head Studs
-------------------------------------------------
Part # Part Name Price
234-4110 ARP Head Studs - Hex Nut $214.95
234-4316 ARP Head Studs - 12pt $294.95

Man it looks like I'll be ordering everything from them <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

TIA!

-N

VAP

I must be from another planet because I just can't see how some of you guys will accept 250+ cc intake runners for 346 ci and only getting revved to 6800 rpm and more importantly being used with hyd cams of only 230 @ .050"
Hey 275 cfm is good for 565plus eng. hp - 275 cfm is achievable with just over 208cc int. runners.

The cams & intakes are whats holding us back not the heads.

Guys we are racing cars not flow benches.

Just my .02c worth <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Slowhawk

iTrader: (12)

Nabbs,Send me an e-mail before you order.

35THSSLE

Results? Someone ask for results? Here you go. No crap comments, O.K.... I am sharing you know.... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

These are not the assembled heads that are milled .055, but will give you an idea of what to expect. Here are the components I had SDPC put together.

GM CNC'd LS6 head cores (243 casting)
Manley springs and titanium retainers
Manley Valves 2.00/1.55
Manley Pushrods
Milled .030 to yield approx. 10.3:1 compression

I used Cometic Gaskets, ARP bolts, the Lunati B1 cam and had it dyno tunned.

Before the above mods HP and TQ were 337/331.
With the above installed I went to 387/368.
Gain from Heads and cam was 50/37. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

I will guess you could probably easily add 15 HP and 15 TQ to those figures if you buy the assembled CNC LS6 heads that are milled .055.

I didn't want the high compression because I am installing a D1SC..... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Hope that helps.....Alex

<small>[ December 11, 2002, 11:16 AM: Message edited by: 35THSSLE ]</small>

Slowhawk

iTrader: (12)

Thanks for the hard #'s <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> Soon I'll have #'s on my setup <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

LS1derfull

<img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

LS1derfull

Nabbs, pushrod length depends in your case on how much heads are milled, order rods however much shorter based on amount taken off heads and add about .020" for LS6 smaller base circle. So if .050" was taken off heads than .030" shorter push rods would be needed technically.

<small>[ December 11, 2002, 07:47 PM: Message edited by: LS1derfull ]</small>