{"product_id":"mahle-ms-piston-set-for-small-block-chevrolet-357-cid-with-4-040-inch-bore-and-3-75-inch-stroke","title":"Mahle MS Piston Set for Small Block Chevrolet 357 CID with 4.040-Inch Bore and 3.75-Inch Stroke","description":"\u003cp\u003eThe Mahle MS Piston Set (Part Number: mhl930208340) is engineered for high-performance small block Chevrolet engines, specifically designed for 357 cubic inch displacement applications. Crafted from high-quality 2618 aluminum alloy, these pistons feature a bore diameter of 4.040 inches and a stroke of 3.75 inches, providing optimal combustion efficiency and power output. The set includes eight pistons, each weighing approximately 466 grams, with a compression ratio of 12.0:1, ideal for demanding street and racing conditions.\u003cbr\u003eSurface coatings include phosphate treatment combined with Grafal, offering enhanced corrosion resistance and reduced friction. The pistons are equipped with a 0.927-inch wrist pin and a 6.125-inch connecting rod compatibility, ensuring durability under high-stress loads. Designed with a combustion chamber volume of 6.0cc, these pistons are not carb-legal but require carb acknowledgment for installation, making them suitable for racing or off-road applications where emissions compliance is not a concern.\u003cbr\u003eMahle’s precision manufacturing guarantees consistent quality, and the set is engineered to withstand the rigors of high-performance engines. The pistons are shipped without freight restrictions, but they are not EPA compliant, emphasizing their use in specialized applications. The set is ideal for engine builders seeking reliable, high-performance pistons for custom Chevrolet small block builds, ensuring optimal power, efficiency, and durability.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBore Diameter: 4.040 inches for optimal performance in 357 CID small block Chevrolet engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroke: 3.75 inches designed for high power output and efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: 2618 aluminum alloy offering strength and lightweight performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCoatings: Phosphate and Grafal for corrosion resistance and reduced friction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eWrist Pin Diameter: 0.927 inches ensuring durability under high loads\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCombustion Chamber Volume: 6.0cc tailored for high compression and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with 6.125-inch connecting rods and 12.0:1 compression ratio\u003c\/li\u003e\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":46981131600071,"sku":"mhl930208340","price":863.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/fc595828583f7ef6a659698209847946_c8d83acd-65cc-440b-9dd7-bc12582d0675.jpg?v=1786464708","url":"https:\/\/mainstreeteshop.com\/products\/mahle-ms-piston-set-for-small-block-chevrolet-357-cid-with-4-040-inch-bore-and-3-75-inch-stroke","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}