5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

331 + Emissions = ??

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Old Dec 8, 2004 | 04:33 PM
  #1  
Aliate X's Avatar
Aliate X
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Default 331 + Emissions = ??

Simply, will a 331 engine pass emissions?
Old Dec 8, 2004 | 04:38 PM
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619socalstang
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Default RE: 331 + Emissions = ??

i have a 8.1L 496 that passes cali smog, you will need to make sure you have really good cats, the cats filter out almost all the Pm 2.5 that the machine is looking for. I know this because im an part time air tech with federal EPA, not that no budget state department thast has to make smog laws stricktor to raise mor money.
Old Dec 8, 2004 | 04:39 PM
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Default RE: 331 + Emissions = ??

Above applies only if you pass the visuale inspection and gas cap test.
Old Dec 8, 2004 | 05:28 PM
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Default RE: 331 + Emissions = ??

You think I can run a pretty mean cam in new york and still pass emissions? Something a bit meaner than the E cam like maybe a B cam, I have high flow cats on the car.
Old Dec 8, 2004 | 06:16 PM
  #5  
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Default RE: 331 + Emissions = ??

i would not run a cam that does not come with a CARB#, high flow cats may hurt your chanceof passing. I would get the bigest cats i could and put as close as possible to the headers.
Old Dec 9, 2004 | 05:02 PM
  #6  
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Default RE: 331 + Emissions = ??

Okay, thats gay, I think Im not passing emissions anymore.
Old Dec 9, 2004 | 05:17 PM
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Default RE: 331 + Emissions = ??

lol just find someone to hook you up with a fake.......... thats what i was tryin to do, but its hard here in cali... i would pay 500$ cash just for a smog slip.. alot of smog shops are closed now because the new equiptment costs too much
Old Dec 9, 2004 | 05:24 PM
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Default RE: 331 + Emissions = ??

i get mine "smogged" in so cal for $150
Old Dec 9, 2004 | 05:27 PM
  #9  
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nemethjames1
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Default RE: 331 + Emissions = ??

think you could hook it up? i'll give ya 500!! would you need the car down there? or just the vin n shiit?.... im dreading having to make my car smogable again[:@]
Old Dec 9, 2004 | 10:59 PM
  #10  
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Default RE: 331 + Emissions = ??

ill have to check for you nemethjames1



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