Help me out here???? :huh:
I was surfing the net and found a cam and heads swap for the LS1 that promises 500 Hp. <_< Just bolt them on?????? :dribble:
The cam and heads were $2500.00 for the set with 2.080" intake/1.60" exhaust valves.
What size do the stock GTO heads have? :unsure:

What I’d like to know is are the stock heads the same as these if we have them ported and polished and have the bigger valves installed. B)
This whole LS1 LS6 head thing is a little confusing to me. :(
Is the bore the same on both engines? Is a LS6 a LS1 with different heads?
What’s the lift and duration on the stock cam? :huh:

Here are the cam specs for the swap Int 576 Exh 571 Dur In 234 Ex 228

Are any of our sponsors offering similar packages for less money???? :dribble:

The LS6 is an LS1 with different heads/cam. Many people just go out and convert their LS1's to LS6's as most of the change are those parts. There is some block differences but they are small, (casting techniques and materials used).

As for installation, don't be fooled by their lingo, a heads and cam swap is more complicated then simply bolting them in place, the cam essentially must be inserted into the engine and carefully done to avoid any possibly damage. I wouldn't suggest this for someone with little experiance.

Perhaps some of our members who have done this could be able to tell you more.

What is the power output with the LS6 conversion done?

how much does it cost to have new cam and heads installed?

These claim 500Hp, probably 420RWHP.

Costs depend on the place you get it done.

Originally posted by Nocturn@Oct 10 2004, 06:45 AM
The LS6 is an LS1 with different heads/cam. Many people just go out and convert their LS1's to LS6's as most of the change are those parts. There is some block differences but they are small, (casting techniques and materials used).

Keep in mind that the LS1 castings aren't made anymore, so all LS1 GTO's are really an LS6 block - and an LS6 intake for that matter.
If you did an LS6 head and cam switch - you would have an LS6 as installed in the 'vette / CTS-V for HP (pretty dang close, anyway).
Dan

Originally posted by DANSLS1+Oct 14 2004, 02:48 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (DANSLS1 @ Oct 14 2004, 02:48 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-Nocturn@Oct 10 2004, 06:45 AM
The LS6 is an LS1 with different heads/cam. Many people just go out and convert their LS1's to LS6's as most of the change are those parts. There is some block differences but they are small, (casting techniques and materials used).

Keep in mind that the LS1 castings aren't made anymore, so all LS1 GTO's are really an LS6 block - and an LS6 intake for that matter.
If you did an LS6 head and cam switch - you would have an LS6 as installed in the 'vette / CTS-V for HP (pretty dang close, anyway).
Dan [/b][/quote]
MUUUUAHAHAHAHAH!!!! :frankie:

I know what I am gonna do first! :friday:

Probably only be 400 HP at the crank though. 500 is waaaaaaaay optimistic.

What would the kit itself cost without install? Would these be supercharger friendly? I'd like to shoot for 500whp would the combo of the heads/cam and supercharger do it?

thanks in advance

The heads and cam swap would probably make the 500 crank as advertised as it isnt a direct LS6 conversion, they are using larger port heads I believe...I han't checked it recently but I know its not a direct LS6 conversion. 500 with simple heads and cam is very doable.

You could also do a supercharger and make over 500, ATI and Vortech both make some good performing units.

Combines and you should have WAY over 500.

Installation costs can vary from palce to place though.

Bear in mind, though, that 500+ HP is nearing the practical limit for longevity with the stock bottom end for an LS-1. Just food for thought...

So are you talking 500 at the crank or 500 at the rear wheels.... I'd like to have 500 at the wheels. What kinda 1/4 mile times do you guess that would produce??

The ones advertised are at the engine..

I would expect 11's with 500 at the engine.

Considering that all LS-1s and LS-6 engines are the same basic design as the truck block, and the LQ4 and LQ9 heads have the same port design as the LS-6. You can use these heads if you want a super charger because the LQ4 and LQ9 use a 72 or 74 cc combusion chamber as opposed to the LS-6s 62 cc combustion chamber. If the engine is quite new a cam is not all that hard. You dont even have to pull the heads to do a cam swamp, as long as the engine is not to old. This is because GM incorporated lifter retainers in the engine, but they wear out over time.

True but if your going to upgrade to new heads with the addition of a supercharger, why not upgrade to aftermarket aluminum heads with larger ports in general?

Originally posted by TheJizzer@Oct 15 2004, 06:02 AM
MUUUUAHAHAHAHAH!!!! :frankie:

I know what I am gonna do first! :friday:
:laughbounce: :laughbounce: :laughbounce:


Hey...I'm with you on this one Jizzer.:knightrider:

I was quoted 3K for Heads/Cam Installed. I believe it was a 226/226CAM and GTP portedheads (NO, NOT GRAND PRIX!)

BUT!!

While they have the engine all tore apart I might as well go for the JetHots and Underdrive pully B) all for less than 4K installed. An I guarentee (man my spelling sucks) I will easily be in the 11s.

If you are in the MD area just call the guys at F-Body Central they will take good care of you...just Tell them Dennis with the RED GTO told you to call them.

And No I do not get any deals from them if you call - they are just some cool guys that do great work.

I was just quoted 900.00 for the install of heads and cams does that sound about right? They said they were gonna pull the motor to do it.

Sounds about right but the engine pulling isn't neccesary. But its more difficult to do in the car, so its not anything out of the ordinary.

Im looking into changing heads and cam also with about 500hp do u guys think the rear end will put it to the pavement or think u will need to play with that or anything else to get it to hook up right , i would think u would or be better too ,to make it hook up .
cuz i dont wanna have all that power and cant get it to the ground ya know let me know what u guys think....

Well with the apropriate tires it would hook, but it would put strain on the rear end and other drivetrain parts, but it may need some beefining in order to plant the rear end over time.

but the GTO can barely keep from sliding all over the road on the current rubber, an upgrade would be a must.

kool kool anyone seen any good deals on heads/cam post if u do thanks

I cant really imagine 500hp. Just for a new cam and heads.

For all of you waiting for the 2005 for the simple added HP... If we put cam/heads, pully's, cold air, and chip it, we'd have over 500hp for under the cost of the 05 :) not to mention the ability to uber stomp it :P

what bout twin turbo?

Originally posted by Goat Lover@Dec 9 2004, 02:49 PM
what bout twin turbo?
That would be fast also but a lot more expensive that a head/cam swap

I can get Heads/Cam/Long tube/Intake/Tune/Pulley/electric exhaust by-pass for $4K-ish installed. That would be good for an easy 550-600hp depending on how aggressive you make the cam and how bored the heads are.

Although the STS (single turbo) is going for $2500 (last time I looked) and should only be about $500-$800 to install (6-8 hours). But I have not seen any "numbers" yet to say what kind of power the 6psi will produce in the 2004 GTO.

OK I take that back - just checked their site and here is what I found

Pontiac GTO - $4495 MSRP
- Available January 1, 2005 ($500 dollar deposit will put you on the waiting list for a kit)

So for about $5000 installed - but again "I have not seen any "numbers" yet to say what kind of power the 6psi will produce in the 2004 GTO."

Originally posted by gto_in_nc@Nov 10 2004, 03:49 PM
Bear in mind, though, that 500+ HP is nearing the practical limit for longevity with the stock bottom end for an LS-1. Just food for thought...
Incorrect. Cartek, LG, and others have had 500+ RWHP on a stock bottom end without issues.

Originally posted by YellowGoatNick@Nov 23 2004, 09:36 PM
I cant really imagine 500hp. Just for a new cam and heads.
Believe it, my bolt-on C5 was over 415 HP at the crank with stock engine internals.

Originally posted by TheJizzer@Nov 11 2004, 08:23 AM
While they have the engine all tore apart I might as well go for the JetHots and Underdrive pully B) all for less than 4K installed. An I guarentee (man my spelling sucks) I will easily be in the 11s.


Don't be too sure. There's more to running good at the track than HP, I ran 11s in my C5 all day long with only 334 RWHP while some heads/cam guys with 100 more RWHP couldn't get out of the 12s. I wish I would have raced mine after putting on the headers, I was at 354 RWHP/357 RWTQ after I installed them and had the car tuned. Setting up the car as a package is more important than raw HP when it comes to getting good ETs.