LS6 Heads??
Melting Slicks
Joined: Oct 1999
Posts: 2,793
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From: carmel Indiana usa
Re: LS6 Heads?? (99 Corvette)
LPE and Norris Motorsports quoted me a price of $1500.00 for the LS6 Heads. The gains aren't that impressive when compared to ported LS1 heads...( around 10-15hp ) but for some reason I still want a set.
A good tuner can get 427-440 rwhp with a set of ported LS6 heads and an aggresive cam.
I'm gonna just wait and save until I can afford to get what I want which is ported LS6 Intake/heads with 3.73 gears. Haven't done my homework on a cam selection yet but will likely choose something pretty agressive.
Good Luck !
David In Indy :seeya
----------------
2000 NBM M6-Coupe
All Options minus F45
Euros/Lloyd Mats/Chrome Shifter/Ripper/Halltech tric/T-bypass/Taylor
Wires/TTS Headers/High Flow Cats/X-pipe/Indy Corsas/Baers/Z06
Calipers/Russell ss brake lines/Hawk Pads/Porsche DOT4 Hi-Performance Brake
fluid/Redline oils/Zaino/Engine Dress by Auto Buffs and Design Specialties
A good tuner can get 427-440 rwhp with a set of ported LS6 heads and an aggresive cam.
I'm gonna just wait and save until I can afford to get what I want which is ported LS6 Intake/heads with 3.73 gears. Haven't done my homework on a cam selection yet but will likely choose something pretty agressive.
Good Luck !
David In Indy :seeya
----------------
2000 NBM M6-Coupe
All Options minus F45
Euros/Lloyd Mats/Chrome Shifter/Ripper/Halltech tric/T-bypass/Taylor
Wires/TTS Headers/High Flow Cats/X-pipe/Indy Corsas/Baers/Z06
Calipers/Russell ss brake lines/Hawk Pads/Porsche DOT4 Hi-Performance Brake
fluid/Redline oils/Zaino/Engine Dress by Auto Buffs and Design Specialties
Le Mans Master
Joined: Jul 2000
Posts: 7,758
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From: Fort Worth Texas
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Re: LS6 Heads?? (Closer_2001)
A properly ported LS1 head will dog stomp a stock LS6 head.
However, a properly ported LS6 head will outperform a properly LS1 head due to fundemental design characterisics.
If you plan on going forced induction, another option is the 2001+ Aluminum 6 liter truck head. It is identical to the LS6 head, down to the D-port and raised intake runner design. The difference is about 4cc less area.
However, a properly ported LS6 head will outperform a properly LS1 head due to fundemental design characterisics.
If you plan on going forced induction, another option is the 2001+ Aluminum 6 liter truck head. It is identical to the LS6 head, down to the D-port and raised intake runner design. The difference is about 4cc less area.
Le Mans Master
Joined: Aug 2001
Posts: 6,725
Likes: 5
From: Colesville MD
Re: LS6 Heads?? (John Shiels)
20-30 CFM more in LS6 or maybe 10 HP nice if you have them or tons of money.
Greg
:cool:
Drifting
Joined: Apr 2000
Posts: 1,655
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From: Jeffersonville In
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Re: LS6 Heads?? (Closer_2001)
Yes a set of ported and polished LS1 heads will produce more rwhp than a set of stock LS6 heads. However a set of ported and polished LS6 heads will produce about 20 rwhp more than comparable LS1 heads.
Whiteboy :chevy
Whiteboy :chevy
Thread Starter
Melting Slicks
Joined: Mar 2001
Posts: 3,261
Likes: 64
From: League City TX
Re: LS6 Heads?? (whiteboy)
I guess I'm looking at the Dollar/HP relationship.
Ported LS1 Heads Stg 1 from MTI: $2700 installed
Cam Package Installed (includes Springs/Retainers): $1200
---------------------------------
Total: $4200
Puts down 385-390 RWHP on 01 w/out pulley and headers
Stock LS6 Heads: $2000 installed
Cam Package Installed (Springs/Retainers): $1200
---------------------------------
Total: $3200
Should put down 375-380 RWHP on 01 w/out headers/pulley??
What would be the difference in compression with the smaller combustion chambers of the Truck Heads?
Ported LS1 Heads Stg 1 from MTI: $2700 installed
Cam Package Installed (includes Springs/Retainers): $1200
---------------------------------
Total: $4200
Puts down 385-390 RWHP on 01 w/out pulley and headers
Stock LS6 Heads: $2000 installed
Cam Package Installed (Springs/Retainers): $1200
---------------------------------
Total: $3200
Should put down 375-380 RWHP on 01 w/out headers/pulley??
What would be the difference in compression with the smaller combustion chambers of the Truck Heads?
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Le Mans Master
Joined: Aug 2001
Posts: 6,725
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From: Colesville MD
Re: LS6 Heads?? (Closer_2001)
I would never go stock. I would/am going to go with stage II LS6 heads and cam. Don't compare apples and oranges. I wouldn't compare a ported LS1 to a stock LS6. Copare stock to stock, or ported to ported. Like I said, if you're gonna do it, do it right!
Greg
:cool:
Greg
:cool:
Le Mans Master
Joined: Jul 2000
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From: A FEW CLICKS NORTH OF THE CANAL
Re: LS6 Heads?? (gmatson)
Is there any Difference in the castings from the LS6 to LS1 ? besides higher compression :confused:
What I'm saying is wasting 1500 bucks on a set of LS6 and then have a tuner turn them into the same thing that he would have done with a set of LS1 heads. I think before I buy a set of LS6 heads I would be on the phone with a tuner. 1500 would pay for the rest of the mods needed to make these heads work.. Cam,lifters, push rods and rockers etc.
:cheers: :cheers:
What I'm saying is wasting 1500 bucks on a set of LS6 and then have a tuner turn them into the same thing that he would have done with a set of LS1 heads. I think before I buy a set of LS6 heads I would be on the phone with a tuner. 1500 would pay for the rest of the mods needed to make these heads work.. Cam,lifters, push rods and rockers etc.
:cheers: :cheers:
Drifting
Joined: Apr 2000
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From: Jeffersonville In
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Re: LS6 Heads?? (RHILL)
When a tuner ports and polishes a set of LS6 heads the results are around 20 rwhp more than a ported and polished LS1 head. You have to decide if that 20 or so rwhp is worth the money for the LS6 heads. First thing you have to do is fit your pocketbook, lol. My only afterthoughts on the LPE work I had done , is I wish I had gone with a hotter cam. Driveability on my package is equal to factory and the car pulls awful strong. Gas mileage is still excellant, and idles at 800 rpm. With the LPE package I am dynoing considerably more than a stock Z06, and for less money than trading up to an 02 Z06 would have been and still have a convertible. Just my .02 worth, lol. Whiteboy :chevy
Drifting
Joined: Sep 2001
Posts: 1,421
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From: Memphis Tn
Re: LS6 Heads?? (RHILL)
There was a thread on this a few weeks back. There was an article in GMHTP mag doing the LS1/LS6 comparison. The link to this article is in this thread if you'll check back a few. The article said the price difference was not worth the hp gain-7 to 9 more hp, on two identically modded C5s. Just use LS6 intake, LS6 exhausts and port LS1 heads to match. :seeya
