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

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

    Michigan Motorsports

    $119.99
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    SKU:
    MM-1.590HP-08
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    Product Description

    Michigan Motorsports 1.590" Stainless High Performance 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' stainless valves are a great upgrade for your factory LS cylinder heads. Made from high strength 21-4N Stainless Alloy, these one-piece forgings feature hard chrome plated stems and hardened tips for durability. Swirl polishing improves flow over the OEM GM valves and standard aftermarket replacements. These valves are designed to be a direct drop-in replacement for the factory 1.59" exhaust valves on the applications listed above. 

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