{"product_id":"mahle-ms-piston-set-for-gm-ls-403ci-with-4-005in-bore-4in-stroke-and-6-125in-rod","title":"Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod","description":"\u003cp\u003eUpgrade your GM LS engine with the Mahle MS Piston Set designed specifically for 403 cubic inch applications. Made with high-quality materials, these pistons feature a bore diameter of 4.005 inches, a stroke of 4 inches, and a connecting rod length of 6.125 inches. The pistons are engineered with a compression ratio of 10.7:1, delivering optimal performance and efficiency. Coated with phosphate and Grafal, these pistons offer excellent wear resistance and durability for demanding engine builds. The set includes eight pistons, each with a piston pin diameter of 0.927 inches and a displacement of -12.0cc, providing the perfect fit for your high-performance engine rebuild. These pistons are not carburetor approved and require carb acknowledgment, making them suitable for specialized applications where EPA compliance is not a primary concern. Their construction adheres to Prop 65 standards, ensuring safety and compliance for automotive use.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBore diameter: 4.005 inches for precise engine machining\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroke: 4 inches to match your engine's specifications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConnecting rod length: 6.125 inches for optimal combustion chamber geometry\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePiston pin diameter: 0.927 inches for secure pin fit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDisplacement: -12.0cc for performance tuning\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCoatings: Phosphate and Grafal for enhanced wear resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for GM LS 403 cubic inch engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression ratio: 10.7:1 for balanced power and efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSet of 8 pistons for complete engine rebuild\u003c\/li\u003e\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":46978556526791,"sku":"mhl930219305","price":907.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/3ca5314bdfcae5e6e1828e5c16d70b35_16f175ed-edb2-4ec9-b274-b142940e9156.jpg?v=1786421851","url":"https:\/\/mainstreeteshop.com\/products\/mahle-ms-piston-set-for-gm-ls-403ci-with-4-005in-bore-4in-stroke-and-6-125in-rod","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}