55Chevypost

iTrader: (1)

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

blkm6formula

iTrader: (2)

all truck coils are supposed to perform better than ls1 coils, with the ones that have the heat sink being the best.

ws6fitz

I believe that they do.

55Chevypost

iTrader: (1)

Thank you, which commonly have heat sinks?

ws6fitz

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

55Chevypost

iTrader: (1)

Thanks.

ws6fitz

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!

55Chevypost

iTrader: (1)

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.

ws6fitz

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

55Chevypost

iTrader: (1)

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

ws6fitz

Is it through an auto or a m6? And what other mods are going/done to the car?

55Chevypost

iTrader: (1)

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?

ws6fitz

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.

55Chevypost

iTrader: (1)

Still there?

ws6fitz

yeah im here.

55Chevypost

iTrader: (1)

241 heads, ls6 cam, stock rear, what else?

just got your last,sorry

ws6fitz

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.

55Chevypost

iTrader: (1)

I was hoping for 400

ws6fitz

sent you a pm

55Chevypost

iTrader: (1)

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.