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Intake Manifold Assembly for LS3, L92 - 12638197

[Part # 12638197]

  • In stock.
  • Ships in 2-7 business days.
  • Ships directly from GM (except international orders).
$863.99 Free Shipping Details

The factory LS3/L92 intake manifold is one of the best flowing intakes available for the LS engine. Designed for rectangular port heads (LS3 and L92). Will not fit LS1/LS6/LS2 (cathedral-port) heads.


  • GM Part # 12638197 - LS3/L92 intake manifold, fuel rail, injectors, 90mm ETC (fly-by-wire) throttle body and gaskets (old part no. 12610434)
  • GM LS-series engine with rectangular port heads

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