Product Description
Michigan Motorsports 1.590" Inconel LS Exhaust Valves
Fits 2007-Later 821, 823 & 5364 Rectangle Port Heads | Available Individually or as a Set of 8
Michigan Motorsports 1.590" Inconel LS exhaust valves are designed as direct drop-in replacements for the factory 1.59" exhaust valves in the compatible 6.0L and 6.2L rectangle-port applications listed below. Made from highly temperature-resistant Inconel alloy, these one-piece forged valves are an ideal upgrade for turbocharged, supercharged, and high-temperature endurance applications. Hard chrome-plated stems and hardened tips enhance durability, while the swirl-polished valve design improves airflow compared with OEM GM valves and standard aftermarket replacements. Choose a single replacement exhaust valve or a complete set of eight for a full cylinder-head pair.
Key Features & Benefits
- Temperature-Resistant Inconel Alloy: These exhaust valves are manufactured from Inconel alloy for use in demanding turbocharged, supercharged, and high-temperature endurance applications. The material is specifically suited to the elevated exhaust temperatures encountered in performance-oriented LS engine combinations.
- One-Piece Forged Construction: Each valve features a one-piece forged design that provides a durable upgrade for compatible LS rectangle-port cylinder heads. This construction gives performance builders a purpose-built exhaust-valve option for engines operating under increased heat and demanding conditions.
- Hard Chrome-Plated Stems: The valve stems receive a hard chrome-plated surface, while the valve tips are hardened for additional durability. These construction details support the valve in the guide and valvetrain contact areas during operation.
- Swirl-Polished for Improved Flow: Swirl polishing improves airflow compared with OEM GM exhaust valves and standard aftermarket replacements. This feature makes the valves a performance-focused option for compatible LS engines receiving forced-induction or high-temperature endurance upgrades.
- Direct 1.590" Replacement Size: These valves are designed as direct drop-in replacements for the factory 1.59" exhaust valves used in the listed applications. They fit compatible 821, 823, and 5364 rectangle-port cylinder-head castings and the specified LS engine codes.
Purchase Options
- Single Exhaust Valve
- Set of 8 Exhaust Valves
Specs
- Brand: Michigan Motorsports
- Product Type: Exhaust Valve
- Valve Diameter: 1.590"
- Material: Inconel Alloy
- Construction: One-Piece Forging
- Stem: Hard Chrome-Plated
- Tip: Hardened
- Valve Finish: Swirl-Polished
- Available Quantities: Single or Set of 8
Key Fitments
- Fits 2007-Later Rectangle Port Head Casting Numbers 821 823 5364
- Fits Engine Codes: LS3 L99 L76 L77 L92 LY6 L9H L94 L96
- CADILLAC CTS 2009-2015
- CADILLAC ESCALADE 2007-2014
- CHEVROLET CAMARO 2010-2015
- CHEVROLET CAPRICE 2011-2017
- CHEVROLET CORVETTE 2008-2013
- CHEVROLET EXPRESS 2500 2010-2015
- CHEVROLET EXPRESS 3500 2010-2015
- CHEVROLET SILVERADO 1500 2007-2013
- CHEVROLET SILVERADO 2500 2010-2019
- CHEVROLET SILVERADO 3500 2010-2019
- CHEVROLET SS 2014-2017
- CHEVROLET SUBURBAN 1500 2007-2009
- CHEVROLET SUBURBAN 2500 2010-2013
- CHEVROLET TAHOE 2008-2009
- GMC SAVANA 2500 2010-2015
- GMC SAVANA 3500 2010-2015
- GMC SIERRA 1500 2007-2013
- GMC SIERRA 2500 2010-2019
- GMC SIERRA 3500 2010-2019
- GMC YUKON 2007-2014
- GMC YUKON XL 1500 2007-2014
- GMC YUKON XL 2500 2010-2013
- HUMMER H2 2008-2009
- PONTIAC G8 2008-2009
