{"product_id":"racing-head-service-rhs-11903-dominator-flange-efi-single-plane-intake-manifold-for-chevrolet-big-block","title":"Racing Head Service (RHS) 11903 - Dominator Flange EFI Single Plane Intake Manifold for Chevrolet Big Block","description":"\u003cp\u003eRacing Head Service (RHS) 11903 - Dominator Flange EFI Single Plane Intake Manifold for Chevrolet Big Block\u003c\/p\u003e\u003cp\u003eIntake Manifold - Dominator Flange - Single Plane - Rectangle Port - Aluminum - Natural - Big Block Chevy - Kit\u003c\/p\u003e\u003cp\u003eOffering excellent performance for drag race and marine Chevrolet Big Blocks, this EFI manifold delivers excellent flow, throttle response and torque. The RHS 24 Degree Manifold provides a distinct advantage over the competition.\u003c\/p\u003e\u003cp\u003eThese manifolds are designed for maximum airflow and power with a 4500 Dominator-style carburetor flange. Engineered to fit most 24-degree style race cylinder heads, RHS took additional efforts to ensure excellent port matching when paired with RHS Big Block Chevrolet cylinder heads. These manifolds are available in both carb and EFI versions and offer excellent performance for drag racing and marine applications.\r\nFeaturing a single-plane design, they utilize individual runner dividers for excellent throttle response and exceptional torque. Available for both short and tall deck blocks, all versions utilize a standard BBC distributor – there is no need for a slip collar distributor or special distributor for tall deck engines. They feature auxiliary water ports, an integral water crossover and dual distributor hold-down pads. Ports for water lines are also provided at all four corners. RHS also teamed up with sister brand FAST to create a revolutionary EFI version of the manifold that features port angle optimized injector bung mounting and machining, which angles the injectors to point directly at the valve. In addition, the EFI manifolds feature integral sensor mounting points to improving function, fitment and packaging.\u003c\/p\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBasic Operating RPM Range\u003c\/strong\u003e: \u003cspan\u003e3000-8000\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBolt Centerline to Port Floor\u003c\/strong\u003e: \u003cspan\u003e1.15\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBolt Hole Centerline to Port Roof\u003c\/strong\u003e: \u003cspan\u003e1.34\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarb Angle\u003c\/strong\u003e: \u003cspan\u003e0\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarb Height\u003c\/strong\u003e: \u003cspan\u003e7.46\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Mounting Pattern\u003c\/strong\u003e: \u003cspan\u003e4500\/Dominator\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCenter Maximum Height\u003c\/strong\u003e: \u003cspan\u003e7.46\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC Ported\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: \u003cspan\u003eNatural\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEGR?\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003eNatural\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFront Maximum Height\u003c\/strong\u003e: \u003cspan\u003e2.81\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGasket Or Seal Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIncludes Fuel Rails?\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInjectors Included?\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Port Height\u003c\/strong\u003e: \u003cspan\u003e2.49\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Port Width\u003c\/strong\u003e: \u003cspan\u003e1.71\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Diameter\u003c\/strong\u003e: \u003cspan\u003eSlotted 7\/16\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Quantity\u003c\/strong\u003e: \u003cspan\u003e12\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMultiport EFI Ready?\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNitrous Bosses?\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePlenum Volume (including Runners)\u003c\/strong\u003e: \u003cspan\u003e268\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRear Maximum Height\u003c\/strong\u003e: \u003cspan\u003e2.36\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSingle Or Dual Plane Type\u003c\/strong\u003e: \u003cspan\u003eSingle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Included?\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Racing Head Service (RHS)","offers":[{"title":"Default Title","offer_id":50749339861270,"sku":"DXKK-11903","price":521.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/0878\/9782\/files\/0_rhs11903_normalized.jpg?v=1776859203","url":"https:\/\/www.cspracing.com\/products\/racing-head-service-rhs-11903-dominator-flange-efi-single-plane-intake-manifold-for-chevrolet-big-block","provider":"Complete Street Performance","version":"1.0","type":"link"}