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supercharger related: replacing broken 6.0 with a .... 5.3?

Old 02-08-2019, 07:43 AM
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Those options are all wrong imo for your desired setup. With a ported head you don’t need quite as much duration to achieve the same effect. If you were not thrilled with the old cam in the 6.0 then you need to consider that. Of the cams you mentioned the first two wouldnt be any better and the last would be a dog down low in a 5.3

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Old 02-08-2019, 08:10 AM
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Originally Posted by 03sierraslt View Post
Those options are all wrong imo for your desired setup. With a ported head you donít need quite as much duration to achieve the same effect. If you were not thrilled with the old cam in the 6.0 then you need to consider that. Of the cams you mentioned the first two wouldnt be any better and the last would be a dog down low in a 5.3
I have no idea what to get, just throwing some FI cams out there to see if I get any bites. Will scratch those from the list.

I spend most of my time driving like a normal person. I do like to pull it up to readline a handfull of times per month. I want it to be all there though when I do it!
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Old 02-08-2019, 08:27 AM
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Sounds like I need a mild supercharger oriented cam with meth kit for the full throttle days.
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Old 02-08-2019, 08:37 AM
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Originally Posted by Jim_PA View Post
Sounds like I need a mild supercharger oriented cam with meth kit for the full throttle days.

ill play around with some valve event ideas and send you a pm with some specs.
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Old 02-08-2019, 01:22 PM
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I thought the gt2-3 was a good mild blower cam for the 5.3
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Old 02-08-2019, 02:36 PM
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Originally Posted by terravast4 View Post
I thought the gt2-3 was a good mild blower cam for the 5.3
personally, I am not a fan. They were designed in the days of small inefficient compressors and for stock like idle. They were pretty soft off the bottom also in a 5.3

ive tuned a couple and they never impressed me. Many like them, or did anyway.

Again this is just my opinion.
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Old 02-12-2019, 09:14 AM
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Ok, how about this one?

​​​​​​​Grind # XA220/350-XA234/345-18+4
Mild Street Performance
Duration at .050: 220/234
118 Lobe Center Angle with a 114 Degree Intake Centerline
Lift with 1.7 Rocker Arm Ratio: .595"/.587"
Recommended Displacement: 5.3-6.2 Liter Engines
Recommended Compression Ratio: 8.5:1-10.0:1
Recommended Headers: 1 3/4" - 1 7/8"
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Old 02-12-2019, 09:26 AM
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That has way to late of an exhaust valve close for what you need. Custom is your best bet.
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