{"product_id":"pmo-insulator-set-38mm-cis-injection-porsche-911-1974-1983-pm-o924-0","title":"PMO Insulator Set, 38mm CIS Injection — Porsche 911 (1974-1983 CIS) (PM-O924-0)","description":"\u003ch2\u003e\u003cb\u003ePMO 38mm Carburetor Insulator Set, Phenolic — Porsche 911 (PM-O924-0)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eShort answer:\u003c\/b\u003e PMO PM-O924-0 is a 38mm phenolic composite carburetor insulator set that mounts between the cylinder heads and the intake manifolds, listed for the Porsche 911 (1974–1983, CIS-pattern heads). It cuts the heat that reaches the fuel, so the mixture stays steadier and vapor lock and hot-start trouble are less likely. Match the 38mm size to your head ports and manifold flanges before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePart numbers:\u003c\/b\u003e PMO PM-O924-0\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974–1983\u003c\/td\u003e\n\u003ctd\u003ePorsche 911 (air-cooled) with CIS-pattern heads\u003c\/td\u003e\n\u003ctd\u003eFor a PMO or Weber carburetor conversion on CIS-port heads; match port size and height to your build\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoes not fit\u003c\/td\u003e\n\u003ctd\u003e1965–1973 911 with carbureted or MFI-pattern heads\u003c\/td\u003e\n\u003ctd\u003eUse PMO's carbureted\/MFI-pattern parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoes not fit\u003c\/td\u003e\n\u003ctd\u003e1984–1989 Carrera 3.2 and 964\/993 3.6 (Motronic heads)\u003c\/td\u003e\n\u003ctd\u003eUse PMO's Motronic-pattern parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975–1989\u003c\/td\u003e\n\u003ctd\u003ePorsche 930\u003c\/td\u003e\n\u003ctd\u003eNot confirmed; call us before ordering for a 930\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe listing name refers to a CIS application; if your car is not carbureted, call us before ordering.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003ePM-O924-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePMO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePhenolic composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eApproximately 4-1\/8 x 4-1\/4 x 1-3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping weight\u003c\/td\u003e\n\u003ctd\u003e0.2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eWhy It Matters\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eHeat soak is what turns a crisp-running carbureted 911 into a hard hot-starter. Phenolic composite conducts very little heat and holds its shape in the engine bay, so the insulator keeps manifold heat away from the fuel in the carburetor.\u003c\/p\u003e\n\u003cp\u003eIt is a genuine PMO part, from the maker of the carburetors, and matches the original mounting for the listed application.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounts between the cylinder head and the intake manifold.\u003c\/li\u003e\n\u003cli\u003eCheck that the 38mm size matches your head ports and manifold flanges before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWill the PMO PM-O924-0 insulator set fit my Porsche 911?\u003c\/b\u003e It is listed for the Porsche 911 (1974–1983, CIS-pattern heads) in the 38mm size. Match the 38mm size to your head ports and manifold flanges before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoes the PMO 38mm insulator set fit a Porsche 930?\u003c\/b\u003e 930 fitment is not confirmed. Call us before ordering for a 930.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat is a carburetor insulator made of?\u003c\/b\u003e This set is phenolic composite, a material that conducts very little heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat does a carburetor insulator do?\u003c\/b\u003e It mounts between the cylinder head and the intake manifold and cuts the heat that reaches the fuel, which helps keep the mixture steady and reduces vapor lock and hot-start trouble.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat is the part number?\u003c\/b\u003e PMO PM-O924-0. The package is about 4-1\/8 x 4-1\/4 x 1-3\/8 in and 0.2 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/porsche\"\u003ePorsche Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/porsche-911\"\u003ePorsche 911\u003c\/a\u003e · \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAir-Cooled Catalog\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCalifornia Prop 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003cp\u003eAll parts legal for use on pre-pollution controlled vehicles only.\u003c\/p\u003e","brand":"PMO","offers":[{"title":"Default Title","offer_id":45259276320883,"sku":"PM-O924-0","price":52.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PM-O924-0-scaled.jpg?v=1784322062","url":"https:\/\/www.washburnsmetal.com\/products\/pmo-insulator-set-38mm-cis-injection-porsche-911-1974-1983-pm-o924-0","provider":"Washburn's Metal","version":"1.0","type":"link"}