{"product_id":"manley-chevy-ls-7-small-block-severe-duty-pro-flo-exhaust-valves-set-of-8","title":"Manley Chevy LS-7 Small Block Severe Duty\/Pro Flo Exhaust Valves (Set of 8)","description":"\u003cp\u003eThe Manley Chevy LS-7 Small Block Severe Duty\/Pro Flo Exhaust Valves are high-performance engine components designed for extreme durability and reliability. Crafted from exclusive materials—XH-428 for exhaust and NK-844 for intake—they offer unmatched tensile strength and resistance to high temperatures. Engineered for demanding applications, these valves feature chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces, ensuring superior airflow, efficiency, and wear resistance. Built for race-winning strength and precision, they deliver exceptional fatigue life, enduring over 100 million cycles in testing, significantly outperforming competitors.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for the Chevrolet LS-7 small block engine, these valves are suitable for high-performance builds requiring maximum durability. They are intended as direct replacements or upgrades for LS-7 engines operating under extreme conditions, including racing and high-performance street applications. The set of eight valves is ideal for enthusiasts seeking enhanced reliability and longevity in demanding environments. Installation involves standard valve replacement procedures, making them suitable for professional or experienced DIY mechanics aiming to optimize engine performance and endurance.\u003c\/p\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":52554168140063,"sku":"11679-8","price":301.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/fec5f7dba71aff461c53f7b003c4211fL_db47e3a3-74db-4a0f-a619-a6a2075ca70b.jpg?v=1779243451","url":"https:\/\/shop.wheelflip.com\/products\/manley-chevy-ls-7-small-block-severe-duty-pro-flo-exhaust-valves-set-of-8","provider":"WheelFlip","version":"1.0","type":"link"}