LS6 cam in a 5.3? - Yellow Bullet Forums

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Old 11-08-2013, 04:57 AM   #1
malibuplotter
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Default LS6 cam in a 5.3?

Ok guys please be patient with me, this is my first crack at an ls motor, it's going into my 80 Malibu and I'm kinda going to learn/ crash and burn as I go, the motor was givin to me after a friend aborted the project it was supposed to go into, I have no idea what year the motor is nor how to identify it, it has cathedral ports and center bolt valve covers and is drive by cable not drive by wire.
So... The hotrod budget is minimal here and I've been reading that an LS6 cam wakes these 5.3's quite nicely, I'm told that ls6 cam take outs are all over the place(i have yet to find one though) does anyone know what the lift/duration is on one? Is there an option that might be better suited to my needs? The motor will be carbed at first but will switch over to fi as my budget and knowledge hopefully grows.
Thankyou in advance for taking the time to share your wisdom with an bewildered ls newbie.
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Old 11-08-2013, 06:42 AM   #2
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Default Re: LS6 cam in a 5.3?

If you can get one cheap, they add some nice power and drive like a stocker.

Its hard to tell what your needs are when you dont tell us.
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Old 11-08-2013, 07:04 AM   #3
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Default Re: LS6 cam in a 5.3?

Sorry, please allow me to give the current combo and intended purpose.
The car is not a dedicated race car, I use it to run errands, pick up kids from school ect, it's been bracket raced and auto crossed and also has been on some road trips, I would hate to give up any of that cause a car that's only capable of one purpose would get old for me and my short attention span.
Currently the car has a sbc with a 700r4, 2800stall lockup converter and 3.73 gears, the car weighs 3400ish.
I hope this helps you to help me, please let me know if I've forgotten anything.
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Old 11-08-2013, 07:39 AM   #4
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Default Re: LS6 cam in a 5.3?

I have had the same car you are describing 5.3, 4l60e, 3.50 gear beater. With truck intake, iron manifolds, restalled truck converter, 26" tire, late Z06 cam, springs, and moly pshrods. 19-20 mpg, 13.30's on motor. Sprayed a lot of nitrous through it too.
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Old 11-08-2013, 07:46 AM   #5
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Default Re: LS6 cam in a 5.3?

http://www.smokemup.com/tech/ls1.php
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Old 11-08-2013, 07:49 AM   #6
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Default Re: LS6 cam in a 5.3?

Ok ls6 cam is .525 .525 couldnt buy a used one for my 5.3
I ended up with a 98-99 or 97-98 ls1 cam .500 .500 lift cam.
The 2000 era ls1 cam is around a .47x .47x lift cam.
Dont buy a .525 gto cam because it picks up the cam sensor off the timing gear. (unless thats your block) the others are at the back of the cam.
Btw i picked up a used lgm g5x1 cam 5.8x .57x cam for around $200
A little much duration for a carbed 5.3 but it likes the nitrous.
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Old 11-08-2013, 07:50 AM   #7
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Default Re: LS6 cam in a 5.3?

Quote:
Originally Posted by bmeyer40 View Post
My next post ^^^^^^
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Old 11-08-2013, 08:04 AM   #8
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Default Re: LS6 cam in a 5.3?

Quote:
Originally Posted by TurboBu View Post
I have had the same car you are describing 5.3, 4l60e, 3.50 gear beater. With truck intake, iron manifolds, restalled truck converter, 26" tire, late Z06 cam, springs, and moly pshrods. 19-20 mpg, 13.30's on motor. Sprayed a lot of nitrous through it too.
This is what I'm hoping to accomplish, bottom 13's from a car that I can still drive anywhere, while I've got the engine tore down is it a good idea to put better rod bolts in it? I unbolted one of the rod caps to check a bearing cause nobody seems to know any of the history or even where this engine came from, bearing looked great, bores still have a nice cross hatch, I forgot which rod cap I pulled though.. One of my kids was having an issue that needed my attention asap, when I was able to return to my project I forgot..
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Old 11-08-2013, 08:31 AM   #9
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Default Re: LS6 cam in a 5.3?

I changed all mine out to arp. And didnt do that 1 at a time bullshit or have the caps resized. 7000rpm all day
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Old 11-08-2013, 08:31 AM   #10
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Default Re: LS6 cam in a 5.3?

Great idea while your in in.
You are a perfect candidate for a small nitrous shot(100) aswell. That car will run 12s when you want it to.
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Old 11-08-2013, 08:38 AM   #11
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Default Re: LS6 cam in a 5.3?

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Originally Posted by bmeyer40 View Post
Great idea while your in in.
You are a perfect candidate for a small nitrous shot(100) aswell. That car will run 12s when you want it to.
Shit my carbed 5.3 passed 12's all together. 13.7 n/a 11.7 on a hundo
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Old 11-08-2013, 08:45 AM   #12
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Default Re: LS6 cam in a 5.3?

Quote:
Originally Posted by malibuplotter View Post
This is what I'm hoping to accomplish, bottom 13's from a car that I can still drive anywhere, while I've got the engine tore down is it a good idea to put better rod bolts in it? I unbolted one of the rod caps to check a bearing cause nobody seems to know any of the history or even where this engine came from, bearing looked great, bores still have a nice cross hatch, I forgot which rod cap I pulled though.. One of my kids was having an issue that needed my attention asap, when I was able to return to my project I forgot..
Went 9.09 on stock rod bolts, and ring gaps in my Nova. Stock F-body pan, pick up was uncovering oil pressure dropping to 12psi at 5000+rpm ate a bearing. Unless you plan on tuning it 9000 rpm, you are wasting time, money and more likely to deform the rods with more torque.

Spray 275 shot on mine regularly, sprayed 325 once, trans flared on 2-3 shift, dbw closed tb and BOOM big nitrous explosion! Melted off 5 spark plug ground straps, blew the back out of the intake, disintegrated silicon elbow and ballooned air filter. Fresh plugs, air filter, cummins diesel elbow, epoxied intake back together and she wen a tenth quicker! Fuck all that taking the bottom end apart, it's a $200-$400 engine run that bitch til she blows up and stab another in.
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Old 11-08-2013, 08:52 AM   #13
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Default Re: LS6 cam in a 5.3?

Quote:
Originally Posted by TurboBu View Post
Went 9.09 on stock rod bolts, and ring gaps in my Nova. Stock F-body pan, pick up was uncovering oil pressure dropping to 12psi at 5000+rpm ate a bearing. Unless you plan on tuning it 9000 rpm, you are wasting time, money and more likely to deform the rods with more torque.

Spray 275 shot on mine regularly, sprayed 325 once, trans flared on 2-3 shift, dbw closed tb and BOOM big nitrous explosion! Melted off 5 spark plug ground straps, blew the back out of the intake, disintegrated silicon elbow and ballooned air filter. Fresh plugs, air filter, cummins diesel elbow, epoxied intake back together and she wen a tenth quicker! Fuck all that taking the bottom end apart, it's a $200-$400 engine run that bitch til she blows up and stab another in.
Specs on nova please weight and gear.
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Old 11-08-2013, 10:31 AM   #14
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Default Re: LS6 cam in a 5.3?

You guys got me all amped up now, can't wait to get this heap put together now.
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Old 11-08-2013, 11:00 AM   #15
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Default Re: LS6 cam in a 5.3?

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Originally Posted by malibuplotter View Post
You guys got me all amped up now, can't wait to get this heap put together now.
HURRY!!!
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