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Thread: nnbs heads?

  1. #1
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    nnbs heads?

    has anyone heard about the heads on the 07' and up trucks? i heard they flow over 300 stock. is that true?

  2. #2
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    they're the ls6 heads so whatever they flow...the ones on the trucks have smaller valves or somethin like that
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
    midweststreetcars.com

  3. #3
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    no they dont flow 300 stock. from what i understand they flow the same as a ls6 head which is around 260 @.600. theres really not much info out there about them yet.

    the same head can be found on vettes and gto's

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  4. #4
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    give it a while and they will be all over the junk yards. ill jump on some of those.

  5. #5
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    Quote Originally Posted by green6.0 View Post
    give it a while and they will be all over the junk yards. ill jump on some of those.
    you can get brand new ls6 heads and valves for 425+ship from patriot...

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  6. #6
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    Quote Originally Posted by TXsilverado View Post
    you can get brand new ls6 heads and valves for 425+ship from patriot...
    that's a great deal for some new ones.

    i'm getting some used low mile ones for $250 shipped. they're not for the truck though

    11' Sierra 6.2 NHT
    14.46@91 Stock
    89' Mustang LSX
    10.35@130 pump gas LQ4

    Knothead Racing

  7. #7
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    Quote Originally Posted by bluecajun5.3 View Post
    that's a great deal for some new ones.

    i'm getting some used low mile ones for $250 shipped. they're not for the truck though
    Hmmm...what is it for then? A little F-body?

    2000 ECSB 6.0L
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  8. #8
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    Quote Originally Posted by txarkitekt View Post
    Hmmm...what is it for then? A little F-body?
    actually, it's for an A-body

    11' Sierra 6.2 NHT
    14.46@91 Stock
    89' Mustang LSX
    10.35@130 pump gas LQ4

    Knothead Racing

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