{"product_id":"manley-chevrolet-small-block-exhaust-valve-kit-1-500in-head-dia-4-911in-o-a-length-0-3415in-stem-10721-8","title":"Manley Chevrolet Small Block Exhaust Valve Kit - 1.500in Head Dia. 4.911in O\/A Length, 0.3415in Stem - 10721-8","description":"\u003cp\u003eManley Street Series valves are the ideal choice for enthusiasts looking to boost the performance of a stock or mildly modified street engine.\u003c\/p\u003e\n\u003cp\u003eManley Valve - Exhaust, Valve-SBC S\/F 1.500.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-Quality Stainless Steel: Our Street Series valves, available as XH-424 for exhaust and NK-841 for intake, are crafted from top-grade stainless steel, ensuring durability and longevity.\u003c\/li\u003e\n\u003cli\u003eSwirl Polished and Fully Machined: The under head areas are meticulously swirl polished, and the combustion faces are fully machined, enhancing airflow and combustion efficiency.\u003c\/li\u003e\n\u003cli\u003eChrome Stems and Hard Tips: These valves feature chrome stems and hard tips for increased durability and wear resistance, making them suitable for demanding applications.\u003c\/li\u003e\n\u003cli\u003eVariety of Shapes: Choose from the Street Master (Straight Stem) or Street Flo shapes, allowing you to customize your valve selection based on your specific needs.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":46460620898440,"sku":"man10721-8","price":138.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/2491\/6104\/files\/71a7d21fe2bd56432946b3dfa742c46bL_574db747-5e4b-43f8-8656-e61f8585bf20.jpg?v=1787944298","url":"https:\/\/www.allianceracing.com\/products\/manley-chevrolet-small-block-exhaust-valve-kit-1-500in-head-dia-4-911in-o-a-length-0-3415in-stem-10721-8","provider":"Alliance Racing","version":"1.0","type":"link"}