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LS1 emissions?

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Old Nov 17, 2004 | 08:51 PM
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Kaas's Avatar
Kaas
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Joined: Mar 2003
Posts: 235
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From: Arlington, VA
Car: 89 Iroc-Z
Engine: 350 TPI
Transmission: 700R4
LS1 emissions?
Will an LS1 swap cause any emission problems?
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Old Nov 17, 2004 | 09:42 PM
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89rsragtop's Avatar
89rsragtop
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Joined: Jun 2001
Posts: 412
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From: Long Island, N.Y.
Car: blue
Engine: LS1
Transmission: 6 speed
Axle/Gears: 3.73 posi
In a word no. But you must retain all pollution equiment. cats ,egr etc. My LS1 with a cam runs much cleaner than the 305 TBI ever did.
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Old Nov 18, 2004 | 09:02 PM
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ShiftyCapone
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89rsragtop
My LS1 with a cam runs much cleaner than the 305 TBI ever did.
This is true. Cam profiles and really slick OBD11 stuff keeps the LS1 cleaner than any 3rd gen. The later LS1 f-bods didn't have EGR if that tells you anything.
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