{"product_id":"big-block-chev-hi-rise-single-plane-intake-manifold-oval-ports","title":"Big Block Chev Hi-Rise Single Plane Intake Manifold Oval Ports","description":"\u003cdiv\u003e\n\u003cp\u003eUnleash the upper-end potential of your Big Block Chevy with a Hi-Rise Single Plane Intake Manifold engineered for oval-port heads. Built for large displacement engines, this intake is designed to deliver a steady, high-flow air\/fuel path at elevated RPM, helping your 396–502ci engine reach and sustain peak performance from 3500 to 7500 RPM.\u003c\/p\u003e \u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSingle-plane configuration optimized for high-rpm, high-displacement Big Block Chevy builds.\u003c\/li\u003e \u003cli\u003eOval-port design tailored for airflow efficiency on oval-port cylinder heads.\u003c\/li\u003e \u003cli\u003eHi-Rise plenum promotes strong mid- and top-end charge for aggressive throttle response.\u003c\/li\u003e \u003cli\u003eSquare-bore carburetor pad compatible with modern square-bore carburetors, with non-EGR operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFitment \u0026amp; RPM Range\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned to fit Big Block Chevy engines from 396 to 502 cubic inches and paired with oval-port cylinder heads.\u003c\/li\u003e \u003cli\u003eOperates effectively in the 3500–7500 RPM range, making it suitable for both high-performance street and strip applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIntake manifold type: Hi-Rise single-plane\u003c\/li\u003e \u003cli\u003ePort configuration: Oval ports\u003c\/li\u003e \u003cli\u003eCarburetor pad: Square bore\u003c\/li\u003e \u003cli\u003eFinish: Natural cast\u003c\/li\u003e \u003cli\u003eOverall height (carb pad to bottom): 160 mm (check bonnet clearance)\u003c\/li\u003e \u003cli\u003ePort size: 1.60\" x 1.94\"\u003c\/li\u003e \u003cli\u003eGasket: Fel Pro 1212\u003c\/li\u003e \u003cli\u003eCarburetor studs: 5\/16-18\" (x4)\u003c\/li\u003e \u003cli\u003eMounting holes: 5\/16-18\" (x2)\u003c\/li\u003e \u003cli\u003eDistributor hold-down holes: 3\/8-16\" (x2)\u003c\/li\u003e \u003cli\u003eWater ports: 1\/2\" NPT (x5) with four corner ports and a fifth front outlet\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIntake manifold gasket: Fel Pro 1212\u003c\/li\u003e \u003cli\u003eCarburetor studs: 5\/16-18\" (x4)\u003c\/li\u003e \u003cli\u003eMounting holes hardware: 5\/16-18\" (x2)\u003c\/li\u003e \u003cli\u003eDistributor hold-down mounting holes: 3\/8-16\" (x2)\u003c\/li\u003e \u003cli\u003eWater ports: 1\/2\" NPT (x5)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIntended for high-rpm, large displacement Big Block Chevy builds; port-matching to cylinder heads is recommended for optimal performance.\u003c\/li\u003e \u003cli\u003eIn most setups, late-model water necks, air conditioning, alternator, and H.E.I. ignition systems will clear the manifold.\u003c\/li\u003e \u003cli\u003eCheck bonnet clearance due to the 160 mm overall height.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eApplications \u0026amp; Use Cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBig Block Chevy engines in the 396–502ci range requiring a high-rise, single-plane intake for racing, street performance, and aggressive track use.\u003c\/li\u003e \u003cli\u003eOval-port cylinder head configurations where precise airflow routing and manifold height are critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47266714943658,"sku":"AF6010-1002","price":626.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_6caf95e6-ccfa-499e-9e50-1f8bc691594a.webp?v=1753408235","url":"https:\/\/tgmperformance.com.au\/products\/big-block-chev-hi-rise-single-plane-intake-manifold-oval-ports","provider":"TGM Performance Parts","version":"1.0","type":"link"}