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Cam for 4.8 or 5.3...

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Old 02-14-2007, 02:44 AM
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bedtime bump...
Old 02-14-2007, 01:03 PM
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no one?
Old 02-14-2007, 01:16 PM
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Originally Posted by GreenBlood
i was looking to get this package http://www.texas-speed.com/shop/item...d=175&catid=44 and a ported LS6 oil pump...will that pump work on these trucks? Also, which cam on that list would be best, the 224xe, 224r, or 228r? Which cam on that list would you recommend? I know cam installs on LS1's can be a PITA sometimes, is it anything like that?
that package would be good. I'd go with the 224 split duration. That of course is assuming it's in a 5.3L. If it's in a 4.8 then I would go with something smaller.

With that came you're gonna need around a 3200 stall. Believe me, I know from personal experience that the stock stall isn't going to cut it.

As far as the ls6 oil pump. You don't need it. If the engine has less than 50k miles you don't need to replace it but if it has more than I'd buy a new one. They're only like $70 from gmpartsdirect.com
Old 02-14-2007, 03:10 PM
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Originally Posted by RandomHero
that package would be good. I'd go with the 224 split duration. That of course is assuming it's in a 5.3L. If it's in a 4.8 then I would go with something smaller.

With that came you're gonna need around a 3200 stall. Believe me, I know from personal experience that the stock stall isn't going to cut it.

As far as the ls6 oil pump. You don't need it. If the engine has less than 50k miles you don't need to replace it but if it has more than I'd buy a new one. They're only like $70 from gmpartsdirect.com
thanks, I am a newb to cams, so which 224 is the split duration? if you don't have a stall, what bad things would happen? just a lot of wheelspin?
Old 02-14-2007, 04:49 PM
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Originally Posted by GreenBlood
thanks, I am a newb to cams, so which 224 is the split duration? if you don't have a stall, what bad things would happen? just a lot of wheelspin?
LOL, I wish. A torque converter allows the engine to rev freely up to a higher rpms before the truck begins to move. The simplest way to think about it is look at your idle rpms. Then mash on the gas and notice how your rpms suddenly jump to about 1800 rpms. With a new torque converter the truck will "jump" up to 2800,3000 or whatever your converter is rated to. This allows the truck to get in its powerband much quicker.

I am running the stock stall right now on a 224 split duration cam and it is slow as hell off the line and continues to be slower than stock until around 2800-3000 rpms.

With that big of a cam, I would expect your 60' time to drop by 3/4 of a second, and your 1/4 time to drop by well over a second.

To answer your question though, it won't hurt anything but your pride. You'll feel like your cam swap was a waste until the engine revs to 3k rpms then it's like spraying a 100 shot.

If I were you though I would buy Thunder racing's cam package. It comes with
tr224 on 112 lsa, 918 springs, and hardened 7.4" pushrods. It is basically the same cam but for $100 cheaper. You don't need the double springs anyways.
Old 02-14-2007, 05:24 PM
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Originally Posted by RandomHero
LOL, I wish. A torque converter allows the engine to rev freely up to a higher rpms before the truck begins to move. The simplest way to think about it is look at your idle rpms. Then mash on the gas and notice how your rpms suddenly jump to about 1800 rpms. With a new torque converter the truck will "jump" up to 2800,3000 or whatever your converter is rated to. This allows the truck to get in its powerband much quicker.

I am running the stock stall right now on a 224 split duration cam and it is slow as hell off the line and continues to be slower than stock until around 2800-3000 rpms.

With that big of a cam, I would expect your 60' time to drop by 3/4 of a second, and your 1/4 time to drop by well over a second.

To answer your question though, it won't hurt anything but your pride. You'll feel like your cam swap was a waste until the engine revs to 3k rpms then it's like spraying a 100 shot.

If I were you though I would buy Thunder racing's cam package. It comes with
tr224 on 112 lsa, 918 springs, and hardened 7.4" pushrods. It is basically the same cam but for $100 cheaper. You don't need the double springs anyways.
i will second the buying from thunder... have had no problems ordering from them in the past, and not to mention, it IS $100 cheaper...
Old 02-14-2007, 06:46 PM
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http://www.texas-speed.com/shop/item...atid=44...this package is cheaper with the 918 springs...so which cam from the list would be the bet, i still don't understand split duration?
Old 02-14-2007, 06:53 PM
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that one is nice, but personally I don't know much about TSP cams. I've heard nothing but good results with Thunder though
Old 02-14-2007, 07:24 PM
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Originally Posted by RandomHero
that one is nice, but personally I don't know much about TSP cams. I've heard nothing but good results with Thunder though
true...
Old 02-14-2007, 08:57 PM
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i have the LINGENFELTER gt2-3 207/220 571/580 3000 stall yank torque converter 14.3 quarter mile. nelson performance 93 octane tune...it really woke the ****** up


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