{"product_id":"biglknm-billet-aluminum-water-neck-thermostat-housing-for-mopar-chrysler-dodge-273-440","title":"BIGLKNM Billet Aluminum Water Neck Thermostat Housing for Mopar Chrysler Dodge 273-440","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eIntroducing the BIGLKNM Billet Aluminum Water Neck Thermostat Housing, a purpose-built upgrade for Mopar V-8 engines from 1957 to 1980. This part supports a family of engines including 273, 318, 340, 360, 361, 383, 400, 413, 426W, and 440, suitable for both small-block and big-block Mopar water neck locations. The design emphasizes a precise fit, durable construction, and an efficient coolant path that can suit classic builds and modern upgrades alike.\u003c\/p\u003e\n\u003cp\u003eThe housing is machined from billet aluminum and finished for lasting durability. A smooth mating surface helps form a reliable seal when used with the included gasket, while a robust neck helps maintain steady coolant flow under varied driving conditions. The result is a resilient component that complements the engine bay aesthetics and performance expectations of Mopar enthusiasts.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x gasket (non-asbestos)\u003c\/li\u003e\n  \u003cli\u003e2x stainless steel screws\u003c\/li\u003e\n  \u003cli\u003e1x billet aluminum water neck thermostat housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMaterial, Finish, and Fit\u003c\/h3\u003e\n\u003cp\u003eCrafted from billet aluminum with a corrosion-resistant finish, this housing combines rigidity with a refined appearance. The machining is designed to deliver a smooth surface that aids sealing against the included gasket, while the stainless steel screws help secure a solid, leak-conscious installation.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits and Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable billet aluminum construction provides a solid mounting surface for Mopar water necks.\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant finish helps sustain appearance and performance over time.\u003c\/li\u003e\n  \u003cli\u003eIncludes gasket and hardware, simplifying the swap on compatible engines.\u003c\/li\u003e\n  \u003cli\u003eDesigned to align with Mopar engine layouts, supporting straightforward installation for both vintage and refreshed setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes and Guidance\u003c\/h3\u003e\n\u003cp\u003eVerify your engine model against the listed compatibility before purchase. We are committed to providing each customer with a higher standard of customer service and are available to assist with fitment questions or concerns.\u003c\/p\u003e\n\n\u003ch3\u003eReal-world Scenarios\u003c\/h3\u003e\n\u003cp\u003eFor classic restorations or performance-oriented projects, this billet housing offers a sturdy upgrade that integrates with existing Mopar cooling systems. While results can vary, the combination of precise fit, included gasket, and durable hardware supports a confident seal and stable cooling flow when paired with compatible components.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Mopar engines is this water neck compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Mopar V-8 engines including 273, 318, 340, 360, 361, 383, 400, 413, 426W, and 440.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes one gasket (non-asbestos), two stainless steel screws, and one billet aluminum water neck thermostat housing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BIGLKNM","offers":[{"title":"Default Title","offer_id":42469127389269,"sku":"B0C9CH12JY","price":36.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/biglknm-billet-aluminum-water-neck-thermostat-housing.jpg?v=1778085713","url":"https:\/\/plentytorque.co.uk\/products\/biglknm-billet-aluminum-water-neck-thermostat-housing-for-mopar-chrysler-dodge-273-440","provider":"PlentyTorque","version":"1.0","type":"link"}