{"product_id":"mahle-ms-pistons-for-chevrolet-ls-421cid-4-030-inch-bore-4-125-inch-stroke-6-125-inch-connecting-rod-0-927-inch-pin-20cc-dish-9-8-compression-ratio-set-of-8","title":"Mahle MS Pistons for Chevrolet LS 421cid - 4.030-inch Bore, 4.125-inch Stroke, 6.125-inch Connecting Rod, 0.927-inch Pin, -20cc Dish, 9.8 Compression Ratio (Set of 8)","description":"\u003cp\u003eThe Mahle MS Pistons designed for Chevrolet LS engines deliver high-performance features suitable for demanding applications. Crafted from high-quality 2618 aluminum, these pistons provide excellent strength and durability while maintaining a lightweight profile to optimize engine efficiency. The 4.030-inch bore diameter and 4.125-inch stroke generate a total displacement of 421 cubic inches, making these pistons ideal for custom builds and high-performance upgrades.\u003cbr\u003eEach piston features a -20cc dish to promote a 9.8 compression ratio, enhancing power output while ensuring reliable combustion. The 0.927-inch wrist pin and 6.125-inch connecting rods are engineered for a secure fit, providing stability under high-stress conditions. Coated with phosphate and Grafal, these pistons offer improved wear resistance and corrosion protection, extending engine longevity.\u003cbr\u003eEngineered specifically for automotive applications, these Mahle pistons are not carb-approved but require carb acknowledgment for legal compliance. They are shipped as a set of eight and are designed to meet the rigorous demands of high-performance LS engine builds. Whether upgrading or rebuilding, these pistons deliver consistent performance, precision fit, and reliable operation for your Chevrolet LS engine.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMaterial: 2618 aluminum for strength and lightweight performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBore Diameter: 4.030 inches for optimal engine displacement\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroke: 4.125 inches for increased power\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConnecting Rod Length: 6.125 inches for balanced operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eWrist Pin Diameter: 0.927 inches for secure fit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDish Volume: -20cc for a 9.8 compression ratio\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCoatings: Phosphate and Grafal for wear and corrosion resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Chevrolet LS engines, set of 8 pistons\u003c\/li\u003e\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":46985221898439,"sku":"mhl930230030","price":962.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/b1fa944f05ec19db2ce706aab606cbb9_e02abfc8-aaaf-4173-b920-aa3eea952775.png?v=1786523025","url":"https:\/\/mainstreeteshop.com\/products\/mahle-ms-pistons-for-chevrolet-ls-421cid-4-030-inch-bore-4-125-inch-stroke-6-125-inch-connecting-rod-0-927-inch-pin-20cc-dish-9-8-compression-ratio-set-of-8","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}