{"product_id":"mahle-ms-piston-set-for-small-block-chevy-409ci-with-4-165-inch-bore-and-3-75-inch-stroke","title":"Mahle MS Piston Set for Small Block Chevy 409ci with 4.165 Inch Bore and 3.75 Inch Stroke","description":"\u003cp\u003eThe Mahle MS Piston Set for Small Block Chevy engines is designed for high-performance applications requiring precise fit and reliable durability. Engineered for a 409 cubic inch displacement, these pistons feature a 4.165-inch bore and a 3.75-inch stroke, making them suitable for modified and performance builds. The flat top design with gas porting ensures optimal combustion efficiency, while the asymmetrical valve pockets provide compatibility with a variety of camshaft profiles. Crafted from high-quality materials, each piston weighs approximately 418 grams, ensuring strength without excess weight for improved engine responsiveness. The piston’s compression ratio of 13.1:1 makes it ideal for high-performance and racing applications, delivering increased power output and efficiency.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eFlat top design with gas porting for enhanced combustion efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAsymmetrical valve pockets to accommodate various camshaft profiles\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigh-quality construction weighing approximately 418 grams for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for 409ci Small Block Chevy engines with a 4.165-inch bore and 3.75-inch stroke\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression ratio of 13.1:1 for high-performance power output\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes .927-inch wrist pin for secure attachment\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProp 65 compliant for safety standards\u003c\/li\u003e\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":46983490601159,"sku":"mhl197779165","price":1032.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/33347848d4d78b475d8e4033c7790994_a61f5816-5154-4661-8edf-0218d0a4c766.jpg?v=1786502637","url":"https:\/\/mainstreeteshop.com\/products\/mahle-ms-piston-set-for-small-block-chevy-409ci-with-4-165-inch-bore-and-3-75-inch-stroke","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}