GM Coolant Crossover Pipe, Use with LS1 to LS6 or FAST Intake Manifold Conversion, Part #12602544

GM Performance Parts
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This LS6 steam vent pipe (and often rear steam pipe plugs, sold separately) are required when swapping to an LS6 intake manifold from an LS1 intake manifold. The LS6 manifold will not clear the LS1 steam vent pipes.

If you need the rear plugs as well, see our GM LS6 Coolant Pipe & Plug Kit.