Which Heads Are Better: Ls6, 5.3, Or 6.0
10-12-2004, 09:37 PM
#2
Launching!
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im also interested to hear the answer to this question.BUT i THINK the biggest difference between these heads is the rpm range in which you want the majority of your power.even though i could be wrong.i beleive that each set of heads creates a different compression ratio also.
10-12-2004, 09:43 PM
#3
Staging Lane
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It depends. The LS6 and the LQ9 heads are the same. The only thing is that the LQ9 head combustion chamber is bigger, so it allows you to have a lower compression. But they have the same flow, and characteristics.
10-12-2004, 10:56 PM
#6
Originally Posted by moyam01
It depends. The LS6 and the LQ9 heads are the same. The only thing is that the LQ9 head combustion chamber is bigger, so it allows you to have a lower compression. But they have the same flow, and characteristics.
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10-12-2004, 11:09 PM
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i'm savin for stg 2 ls6 heads....just tryin to find some cheap cores 
5.3's raise your compression a lil bit, 6.0L's drop them. LS6's bump a tad but not much. Where the LS6 heads really shine is under the curve....thats where you'll see the biggest gains over the other heads. But as JRP pointed out, you'll pay for them.
5.3's raise your compression a lil bit, 6.0L's drop them. LS6's bump a tad but not much. Where the LS6 heads really shine is under the curve....thats where you'll see the biggest gains over the other heads. But as JRP pointed out, you'll pay for them.
10-13-2004, 06:34 AM
#12
I see so many guesses.. I have had all heads but LS6. The LS6 heads are still the top dawg. They actually shine better than the 6.0L heads from .500 lift on up. The 6.0L heads shine no matter what, but a good head porter will get more .500 lift flow out of a LS6 head than a 6.0L head. The 5.3L and regular 5.7L heads are still good heads, but they take more work to get close to the flow #'s of the LS6/6.0L heads. Another thing.. Dont get caught up in the flow #'s race. You can have a head flow 350cfm by .600 lift and put out some crazy dyno #'s on a unloaded dyno, but on the street or at the track the heads could run no better than a head that flows 290cfm. There is more to the equation than just peak flow #'s. Go with a proven combo/vendor and take the guessing out of the equation.
10-13-2004, 09:49 AM
#13
Originally Posted by VINCE
I see so many guesses.. I have had all heads but LS6. The LS6 heads are still the top dawg. They actually shine better than the 6.0L heads from .500 lift on up. The 6.0L heads shine no matter what, but a good head porter will get more .500 lift flow out of a LS6 head than a 6.0L head. The 5.3L and regular 5.7L heads are still good heads, but they take more work to get close to the flow #'s of the LS6/6.0L heads. Another thing.. Dont get caught up in the flow #'s race. You can have a head flow 350cfm by .600 lift and put out some crazy dyno #'s on a unloaded dyno, but on the street or at the track the heads could run no better than a head that flows 290cfm. There is more to the equation than just peak flow #'s. Go with a proven combo/vendor and take the guessing out of the equation.
What did your heads end up flowing? I spoke with Larry Meaux on the phone the other day and I'm having difficulty deciding on what Head casting to go with.
Thanks
Floyd
10-13-2004, 11:46 AM
#14
Originally Posted by MUSTANGEATER
Vince,
What did your heads end up flowing? I spoke with Larry Meaux on the phone the other day and I'm having difficulty deciding on what Head casting to go with.
Thanks
Floyd
What did your heads end up flowing? I spoke with Larry Meaux on the phone the other day and I'm having difficulty deciding on what Head casting to go with.
Thanks
Floyd
10-13-2004, 12:31 PM
#16
Originally Posted by VINCE
Actually my heads did not flow on par with what you see on this board, but I did have the highest dyno'ing hydraulic cammed F-body and I still hold that record. I now have the highest dyno'ing hydraulic cammed 408ci C5. Now, I have not taken my car to the track and I do not plan too, but my car not only put out the #'s, but I have raced many cars locally who have been to the track and I beat them. The cars I have raced trap 126mph plus.. Not only did I beat them, but I was walking away from them. Not only is my car fast, but I have guys refusing to race me unless they can use one or two power adders during the race. Larry Meaux can tell you what my heads flowed if he wants, but I will tell you this. My heads flow all the way to .800 lift b4 dropping off. You ask what does that matter? It matters to me.. I am always trying out new cams with higher lifts
10-13-2004, 01:48 PM
#17
Originally Posted by MUSTANGEATER
Awesome damn impressive you get what you pay for. Now to pick a casting lol
My friends are hammering me to put the spray on. I might do it just to post some #'s one day
10-13-2004, 02:04 PM
#19
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Originally Posted by VINCE
There is more to the equation than just peak flow #'s. Go with a proven combo/vendor and take the guessing out of the equation.
Can't beat good advice, I couldn't agree more. Performance is the bottom line....numbers are just a reference tool. Vince, your car f'in owns. Yes, I'll have to agree...it must be nice to be you
10-13-2004, 04:03 PM
#20
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Originally Posted by cyphur_traq
i'm savin for stg 2 ls6 heads....just tryin to find some cheap cores
5.3's raise your compression a lil bit, 6.0L's drop them. LS6's bump a tad but not much. Where the LS6 heads really shine is under the curve....thats where you'll see the biggest gains over the other heads. But as JRP pointed out, you'll pay for them.
5.3's raise your compression a lil bit, 6.0L's drop them. LS6's bump a tad but not much. Where the LS6 heads really shine is under the curve....thats where you'll see the biggest gains over the other heads. But as JRP pointed out, you'll pay for them.
Been reading the thread....are you looking for cheap cores? I just swapped out my LS-1 heads for GTP Stage 1 heads......
If you need LS-6 heads, can't help. If you need LS-1 heads,mine are sittin' in my garage colecting dust....maybe we can work something out?
shoot me an e-mail Nextphasemarko@aol.com
-Marko
