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radical camshaft / pass emissions ?

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Old Apr 3, 2010 | 12:11 AM
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From: phx the cactus patch
Default radical camshaft / pass emissions ?

Hello everyone , I am wondering how radical a camshaft I can install in my 2001 5.3l along with ported exhaust ports and int and exh polished . I will install new lifters and pro stock behives with it . Everything else will remain stock with the exception that I may install shorty headers in the future and still be able to be tuned to pass emissions in Maricopa county , AZ . Thanx for any feedback . chris
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Old Apr 3, 2010 | 08:47 AM
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I wouldn't bother with a cam w/o headers.

I have seen 218/218 on a 114LSA pass on a 5.3 and I would think a 220/220 would also....
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Old Apr 4, 2010 | 08:28 AM
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Hey , You would'nt put a cam in without headers because it would'nt be realising all the gain potential ? BTW thanx 4 the reply .
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Old Apr 4, 2010 | 09:27 AM
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get a large traditional split and you'll be fine, i dont have much experience with 5.3s but id think something like 216/224 would work nicely

keeping the stock manifolds may help with emissions and will keep the cam sounding a lot more tame
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