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  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364
  • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364

    • Stock Replacement 1.590" Exhaust Valves for LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port LS Heads 821 823 5364

    Michigan Motorsports

    $79.99
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    SKU:
    MM-1.590STD-08
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    Product Description

    Michigan Motorsports 1.590" Stock Replacement LS Exhaust Valves

    Fits 2007-Later Rectangle Port Head Casting Numbers 821 823 5364

    Fits Engine Codes: LS3 L99 L76 L77 L92 LY6 L9H L94 L96

    Choose Single or Set of 8 Exhaust Valves

    Michigan Motorsports' standard replacement valves are an affordable option to freshen up your stock or mild performance LS engine. These valves are designed to be a direct drop-in replacement for the factory 1.59" Exhaust valves on the applications listed above. For higher performance and racing applications, be sure to check out our stainless valve options!

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