INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

Strong cam for stock 5.3??

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Old Jan 28, 2007 | 02:12 PM
  #31  
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Originally Posted by Snake Eater
I was the tuner but i had help from big tex and alot of other wise people from here, including nelson. It was a GT-1 in my 5.3 so it was going to be a challange, but what pissed me off most is when i called the lingenfelter guys and talked to there techs (3 of them) they all refused to provide any help. They all said "that cam is for a 5.7L, not a 5.3. You need to buy another cam." This is after i called before i bought it and they said then "it will be fine, there isnt that much difference between the 2 motors, though it will make better power in a 5.7." I just didnt like there customer service.
So let me get this straight - you ordered a 215/231 cam with .631/.644 of lift, for a 5.3L motor? Then you had issues tuning it (surprise!?!) and you are blaming Lingenfelter - first for the cam itself, then for your tuning woes? Are you serious?
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Old Jan 28, 2007 | 02:13 PM
  #32  
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Originally Posted by RandomHero
but how do you figure stock torque is 330? It's nowhere close to that even with your HO 5.3L
.
The #s are at the crank. That is the advertised tq of the engine.


trucksnoobie:
I don't know if you tow at all, but after the cam, I no longer need to floor it to get moving with a trailer. Just half throttle gets it up to speed better than stock.
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Old Jan 28, 2007 | 06:15 PM
  #33  
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the occasional trailer, bed full o'****, you, know. woulda helped moving all my crap from orlando to NY. about 6K lbs worth of ****.

Side question,

at 120,000 miles,
A - is a cam/spring swap a good idea?
B - how will the oil pressure hold up? (now its at 40 - 45 psi at idle and raises with rpm)
C - with a mild cam, i assume comp 915s should suffice, what about retainers, locks, and all that crap?
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Old Jan 28, 2007 | 06:27 PM
  #34  
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Originally Posted by trucksnoobie
the occasional trailer, bed full o'****, you, know. woulda helped moving all my crap from orlando to NY. about 6K lbs worth of ****.

Side question,

at 120,000 miles,
A - is a cam/spring swap a good idea?
B - how will the oil pressure hold up? (now its at 40 - 45 psi at idle and raises with rpm)
C - with a mild cam, i assume comp 915s should suffice, what about retainers, locks, and all that crap?
If you've changed the oil regularly, etc. and the truck is running good, no reason not to do the swap. As far as oil pressure....don't know why that would matter. Regarding springs, etc., it depends on the cam/lift, but I wouldn't bother with the 915's, I'd just go 918's, they're proven and durable. You don't need new retainers or locks, although I would have a package of locks (I think they come in packs of 4 or 8) handy just in case one goes flying and you can't find it. That would be a crappy reason to halt a cam install.
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Old Jan 28, 2007 | 06:30 PM
  #35  
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Originally Posted by trucksnoobie
the occasional trailer, bed full o'****, you, know. woulda helped moving all my crap from orlando to NY. about 6K lbs worth of ****.

Side question,

at 120,000 miles,
A - is a cam/spring swap a good idea?
B - how will the oil pressure hold up? (now its at 40 - 45 psi at idle and raises with rpm)
C - with a mild cam, i assume comp 915s should suffice, what about retainers, locks, and all that crap?
If it was me I'd throw a new oil pump and timing chain on it while I was in there at that mileage

Last edited by moregrip; Jan 28, 2007 at 06:38 PM.
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Old Jan 28, 2007 | 06:41 PM
  #36  
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Originally Posted by moregrip
If it was me I'd throw a new oil pump and timing chain on it while I was in there at that mileage
I would too. Look at one of my recent threads. My oil pump failed on me and it made the cam swap hell having to tear it down twice.
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Old Jan 28, 2007 | 07:22 PM
  #37  
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I did a cam swap at 125k miles. Did cam, springs, and timing set. Went with the gt2-3 cam, ls6 springs good to like .570 lift(since put close to 20k miles on those) and ls2 timing chain.
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Old Jan 28, 2007 | 10:15 PM
  #38  
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LS6 springs on mine too.
Cheaper and maybe quieter than 918s. + they should last longer.
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Old Jan 28, 2007 | 11:19 PM
  #39  
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Originally Posted by TBSS
So let me get this straight - you ordered a 215/231 cam with .631/.644 of lift, for a 5.3L motor? Then you had issues tuning it (surprise!?!) and you are blaming Lingenfelter - first for the cam itself, then for your tuning woes? Are you serious?

no it was the old gt-1. it was a 218/229/581/581/lsa 113. i had it in my ls1 and it was hard to tune in it too. lingenfelter stopped makeing the cam they said it idle too ruff. it ran good in snake eaters 5.3 but daily driving was crap cause it would never idle right. after i put it in my ls1 in my silverado it ran alittle better but it always wanted to die when the weather changed. but he's right they never wanted to help with that cam. i guess they couldn't figure it out either so they stopped making it lol.
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Old Jan 28, 2007 | 11:32 PM
  #40  
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That cam shouldnt be hard to tune. I have a 228/232 .588 .595 110lsa in my 5.3 and although it doesnt idle at 700, it does fine at 900rpm.
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