{"product_id":"mahle-ms-piston-set-for-chevrolet-small-block-420ci-4-155-inch-bore-3-875-inch-stroke-927-inch-pin-12-1-compression-ratio","title":"Mahle MS Piston Set for Chevrolet Small Block 420ci – 4.155 Inch Bore, 3.875 Inch Stroke, .927 Inch Pin, 12.1 Compression Ratio","description":"\u003cp\u003eThe Mahle MS Piston Set designed for Chevrolet Small Block engines offers a high-performance solution for 420 cubic inch applications. Featuring a bore diameter of 4.155 inches and a stroke of 3.875 inches, these pistons are engineered for durability and precision. The set includes pistons with a 12.1 compression ratio, optimized for enhanced power output and efficiency. Constructed from strong 4032 aluminum, these pistons are coated with phosphate and Grafal for improved wear resistance and corrosion protection, ensuring long-lasting performance under demanding conditions. The pistons are designed with a 0.927-inch pin and a 6.0-inch connecting rod, providing a reliable fit for high-performance rebuilds and custom builds. This set contains eight pistons, making it suitable for complete engine assembly and rebuild projects that demand quality and consistency. The Mahle brand is renowned for its precision engineering and durability, making these pistons an excellent choice for automotive enthusiasts and professional mechanics alike.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBore Diameter: 4.155 inches for optimal fit and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroke: 3.875 inches designed for high power output\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePin Diameter: 0.927 inches for secure piston connection\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression Ratio: 12.1:1 for enhanced engine efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: High-strength 4032 aluminum for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCoatings: Phosphate and Grafal for wear resistance and corrosion protection\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSet Includes: Eight pistons suitable for complete engine rebuilds\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Chevrolet Small Block 420 cubic inch engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for high-performance and reliable engine operation\u003c\/li\u003e\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":46981762744519,"sku":"mhl930200955","price":889.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/a3916291e80a1fd9be68ac1e8e060c83_65f3a4d0-84ee-45b5-a4d6-dcd5e4dbd4d8.jpg?v=1786480954","url":"https:\/\/mainstreeteshop.com\/products\/mahle-ms-piston-set-for-chevrolet-small-block-420ci-4-155-inch-bore-3-875-inch-stroke-927-inch-pin-12-1-compression-ratio","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}