{"product_id":"small-block-chev-305-327-350-400-dual-plane-intake-manifold","title":"Small Block Chev 305 327 350 400 Dual Plane Intake Manifold","description":"\u003cdiv\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eEarly Small Block Chev Classic Dual Plane Intake Manifold, finished in natural cast, engineered to deliver a steady air-fuel flow from idle to 5500 RPM for carburetted engines. The dual-plane configuration helps optimize distribution for enhanced throttle response and mid-range performance, while the spread bore carburettor pad accepts aftermarket square-bore carburettors with both manual and electric choke options.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFits Small Block Chev engines from 262 to 400 cubic inches\u003c\/li\u003e \u003cli\u003eIdle to 5500 RPM operating range\u003c\/li\u003e \u003cli\u003eDual-plane design for improved throttle response and mid-range power\u003c\/li\u003e \u003cli\u003eSpread bore carburettor pad accepts aftermarket square-bore carburettors\u003c\/li\u003e \u003cli\u003eEGR equipped; compatible with exhaust emissions components\u003c\/li\u003e \u003cli\u003eEGR block-off plate and gasket included if emissions components are not required\u003c\/li\u003e \u003cli\u003eSpecial adapter bushings included to fit later model heads (1987–1995); angled or straight versions to accommodate accessories\u003c\/li\u003e \u003cli\u003eAdapter plate converts spread bore to square bore carburettor base\u003c\/li\u003e \u003cli\u003eMost installations accommodate late-model water necks, air conditioning, alternator and HEI ignition systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEGR block-off plate\u003c\/li\u003e \u003cli\u003eGasket\u003c\/li\u003e \u003cli\u003eAdapter bushings (angled and straight)\u003c\/li\u003e \u003cli\u003eAdapter plate for square-bore carburettor\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy This Manifold Stands Out\u003c\/h3\u003e\n\u003cp\u003eDesigned for classic small-block Chevy builds, this intake manifold blends a proven dual-plane design with practical adaptation options. It enables use of modern square-bore carburettors while offering emissions flexibility via the included EGR components. The optional bushings and adapters provide versatile mounting for late-heads and common under-hood accessories, all while preserving a clean, timeless under-hood appearance and reliable performance for street and builder-grade applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47266587771050,"sku":"AF6011-1000","price":354.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_77d13816-7f98-4558-beb7-b783fe43f548.webp?v=1753404088","url":"https:\/\/tgmperformance.com.au\/products\/small-block-chev-305-327-350-400-dual-plane-intake-manifold","provider":"TGM Performance Parts","version":"1.0","type":"link"}