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Thread: The Best Exhaust Manifolds

  1. #1
    Join Date
    May 2014
    Location
    us, ga
    Posts
    166

    Default The Best Exhaust Manifolds

    So I've had several 6.5's over the years, and have massed a collection of parts. I'm pretty much finished with an Optima build. I'm ready for the bold ons, and have 3 sets of exhaust manifolds, all different part numbers. Are there any particular part numbers better than the rest?

    Thanks Yall!
    Last edited by Aftermath; 05-15-2017 at 21:11.

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,573

    Arrow

    Not really any significant difference with a turbo. Use the one that 1) Fits, and 2) has the least restrictions. There's probably no noticeable difference between them. Also check that the port surfaces on the heads and manifolds are true.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

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