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Old May 12, 2010 | 08:02 PM
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Do 5.3 coil packs perform better than ls1 on an ls1?

Anyone?

i thought you og ls1 guys were suppose to help the newbies

Last edited by CRAGER; May 12, 2010 at 10:28 PM.
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Old May 12, 2010 | 08:57 PM
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all truck coils are supposed to perform better than ls1 coils, with the ones that have the heat sink being the best.
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Old May 12, 2010 | 08:57 PM
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I believe that they do.
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Old May 12, 2010 | 09:02 PM
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Thank you, which commonly have heat sinks?
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Old May 12, 2010 | 09:19 PM
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Originally Posted by 55Chevypost
Thank you, which commonly have heat sinks?
The truck coils.

here is a link on the conversion to the truck coils from ls1 coils.

https://ls1tech.com/forums/generatio...ke-sticky.html
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Old May 12, 2010 | 09:21 PM
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Thanks.
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Old May 12, 2010 | 09:25 PM
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No problem. Hope if you do it that they do make better power. I have seen cars that seem to react better to them and seen cars that really dont show a difference. I think it just depends on a car to car basis. But good luck.

If you do decide to do it you should post on here your results!
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Old May 12, 2010 | 09:31 PM
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I won't have anything to compare to. This is first ls1 for me and it's not quite finished. need to pick lots of brains.
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Old May 12, 2010 | 09:35 PM
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Originally Posted by 55Chevypost
I won't have anything to compare to. This is first ls1 for me and it's not quite finished. need to pick lots of brains.
Got ya. Im sure there are enough guys on here that have tried it to let you know if its worth the upgrade.

Have you at all thought about the MSD coils? I know for sure they show gains as I have several buddies that have them on their cars and picked up a tenth in the quarter. They arnt cheap tho
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Old May 12, 2010 | 09:38 PM
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Ya cheap is my problem. I'm not building car to race, just wanted to give ls1 a shot. My last 55's were all gen-1 so we shall see. What should I expect h/p wise w/241 heads and ls6 cam
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Old May 12, 2010 | 09:43 PM
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Originally Posted by 55Chevypost
Ya cheap is my problem. I'm not building car to race, just wanted to give ls1 a shot. My last 55's were all gen-1 so we shall see. What should I expect h/p wise w/241 heads and ls6 cam
Is it through an auto or a m6? And what other mods are going/done to the car?
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Old May 12, 2010 | 09:45 PM
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Probably going to do 4l60 although I have a m21 built. Will that bolt to ls1 and am I waisting the purpose of ls1 w/ that tranny?
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Old May 12, 2010 | 09:54 PM
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Originally Posted by 55Chevypost
Probably going to do 4l60 although I have a m21 built. Will that bolt to ls1 and am I waisting the purpose of ls1 w/ that tranny?
Im not sure if that will bolt onto the ls1 block or not. I'm sure you would need to change the tailshaft and bell housing.

If your planning on just doing a ls6 cam and 241 heads I would just stick to the 4l60e trans because the m21 will eat up some power.

I would think you would be in the ballpark of somewhere around 350 to the tires or so. If I were you I would look into getting atleast a 224/224 cam tho. Then you can be upwards of around 380 to 400rwhp.
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Old May 12, 2010 | 09:55 PM
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Still there?
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Old May 12, 2010 | 09:58 PM
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Originally Posted by 55Chevypost
Still there?
yeah im here.
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Old May 12, 2010 | 09:59 PM
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241 heads, ls6 cam, stock rear, what else?

just got your last,sorry

Last edited by CRAGER; May 12, 2010 at 10:28 PM.
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Old May 12, 2010 | 10:02 PM
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Let me ask you this.... How much power are you wanting to make on this build? Then Ill give you some suggestions on how to achieve it.
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Old May 12, 2010 | 10:03 PM
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I was hoping for 400
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Old May 12, 2010 | 10:10 PM
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sent you a pm
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Old May 12, 2010 | 10:13 PM
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I gotta tell you I feel pretty silly but what is a pm

Forget my last, I know.

Got it. I got an ls6 cam and springs w/0 miles from guy for 150, so I think I am going w/that. The rest of motor is stock ls1 but have Prof Prod intake.

Last edited by CRAGER; May 12, 2010 at 10:26 PM.
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