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Thread: Fast90 swap what do I need?

  1. #1
    EFILive Reseller ringram's Avatar
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    Default Fast90 swap what do I need?

    Thinking about an LS6 to Fast90 swap. Can I reuse my stock LS1 fuel rails?
    Ive ordered the LS6 water block off bits and pipes, do I need these?
    Also ordered new port gaskets. Based on some of the shocking stories, Ill need these!
    Also NW90 planned.
    Anything else Ive fogotten? What about TB bolts?
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  2. #2
    Joe (Moderator) joecar's Avatar
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    I heard that the Fast90 manifold comes with a set of valley cover bolts (that have short bolt heads)... and that you're supposed to use these or else.

  3. #3
    Member ace68's Avatar
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    Default

    or you could get a Vic. JR

  4. #4
    Lifetime Member Bruce Melton's Avatar
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    You will need the port gaskets as noted but Fel-Pro (MS-92438) sells them for half GM price. The TB bolts are common metric I would just wait and get those by length. If you have LS6 under manifold plugs steam plugs, those work. The LS1 fuel rail fits and injectors fit.
    I am likely not familiar with your car but hope you do not have milled heads as that will cause problems. Cable TB?

    I hate these things but many have had good results

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  5. #5
    EFILive Reseller ringram's Avatar
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    Yeah Ive got my fingers crossed re fittment. Ive got stock Dart heads no extra milling. I ordered the hardware fit kit with manifold bolts etc too plus the LS6 steam stuff. Sounds good to go then. Thanks.
    Get EFILive in europe (http://www.efilive.eu).
    2007 Escalade ESV L92 6.2L VVT.
    2014 VF SV LS3 Maloo.

  6. #6
    Lifetime Member TAQuickness's Avatar
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    Quote Originally Posted by Bruce Melton
    I hate these things but many have had good results
    me too. My heads are milled a good bit and it's been three kinds of hell getting the fast90 to seal up.


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