{"title":"Exhaust Gaskets","description":"","products":[{"product_id":"absolute-cnc-products-copper-exhaust-gasket-o-s-engines","title":"Absolute CNC Products – Copper Exhaust Gasket (O.S Engines)","description":"\u003cdiv\u003e\n\u003cdiv class=\"flex h-svh w-screen flex-col\"\u003e\n\u003cdiv class=\"relative z-0 flex min-h-0 w-full flex-1\"\u003e\n\u003cdiv class=\"relative flex min-h-0 w-full flex-1\"\u003e\n\u003cdiv class=\"@container\/main relative flex min-w-0 flex-1 flex-col -translate-y-[calc(env(safe-area-inset-bottom,0px)\/2)] pt-[calc(env(safe-area-inset-bottom,0px)\/2)]\"\u003e\n\u003cdiv data-scroll-root=\"\" class=\"@w-sm\/main:[scrollbar-gutter:var(--stage-scroll-gutter)] touch:[scrollbar-width:none] group\/scroll-root relative flex min-h-0 min-w-0 flex-1 flex-col [scrollbar-gutter:stable] not-print:overflow-x-clip not-print:overflow-y-auto group-data-stream-active\/scroll-root:[overflow-anchor:none] scroll-pt-(--header-height) [--sticky-padding-top:var(--header-height)] [--sticky-padding-bottom:0px] [--scroll-root-safe-area-inset-top:calc(var(--sticky-padding-top)+env(safe-area-inset-top,0px))] [--scroll-root-safe-area-inset-bottom:calc(var(--sticky-padding-bottom)+var(--screen-keyboard-height,0px)+env(safe-area-inset-bottom,0px))] [--scroll-root-safe-area-height:calc(100lvh-var(--scroll-root-safe-area-inset-top)-var(--scroll-root-safe-area-inset-bottom))] has-data-[fixed-header=less-than-xl]:@w-xl\/main:scroll-pt-0 has-data-[fixed-header=less-than-xl]:@w-xl\/main:[--sticky-padding-top:0px] has-data-[fixed-header=less-than-xxl]:@w-2xl\/main:scroll-pt-0 has-data-[fixed-header=less-than-xxl]:@w-2xl\/main:[--sticky-padding-top:0px]\" data-scroll-from-top=\"\"\u003e\u003cmain class=\"not-keyboard-focused:outline-none min-h-0 flex-1\" id=\"main\" tabindex=\"-1\"\u003e\n\u003cdiv id=\"thread\" class=\"group\/thread flex flex-col min-h-full\"\u003e\n\u003cdiv role=\"presentation\" class=\"composer-parent flex flex-1 flex-col focus-visible:outline-0\"\u003e\n\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) pb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a1065f4-16d0-83e8-ae78-7adf023ba8d2-2\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a1065f4-16d0-83e8-ae78-7adf023ba8d2-2\" data-turn-id-container=\"request-6a1065f4-16d0-83e8-ae78-7adf023ba8d2-2\" data-testid=\"conversation-turn-4\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"73d840f5-2a43-44cf-a9e6-98d9bf310b4b\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"13mwvo\" data-start=\"51\" data-end=\"86\"\u003eO.S. Engines 61 \/ 70 \/ 91 \/ 105\u003c\/h3\u003e\n\u003cp data-start=\"88\" data-end=\"426\"\u003eThe Absolute CNC Products Copper Exhaust Gasket is engineered to provide a reliable, high-temperature seal between the engine and exhaust header on popular O.S. nitro helicopter engines. Manufactured from precision-cut annealed copper, this gasket offers superior durability and conformability compared to traditional fiber-style gaskets.\u003c\/p\u003e\n\u003cp data-start=\"428\" data-end=\"636\"\u003eDesigned for demanding 3D flight and high-performance nitro applications, the copper construction withstands repeated heat cycles while helping minimize exhaust leaks, oil residue, and tuning inconsistencies.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"638\" data-end=\"650\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"651\" data-end=\"967\"\u003e\n\u003cli data-section-id=\"1f247y7\" data-start=\"651\" data-end=\"697\"\u003ePrecision-cut annealed copper construction\u003c\/li\u003e\n\u003cli data-section-id=\"1rbxhaz\" data-start=\"698\" data-end=\"754\"\u003eExcellent resistance to extreme exhaust temperatures\u003c\/li\u003e\n\u003cli data-section-id=\"1d678lq\" data-start=\"755\" data-end=\"803\"\u003eProvides a durable and reliable exhaust seal\u003c\/li\u003e\n\u003cli data-section-id=\"rdo60t\" data-start=\"804\" data-end=\"854\"\u003eHelps reduce exhaust leaks and residue buildup\u003c\/li\u003e\n\u003cli data-section-id=\"hvg1x8\" data-start=\"855\" data-end=\"906\"\u003eReusable when inspected and properly maintained\u003c\/li\u003e\n\u003cli data-section-id=\"bo0m65\" data-start=\"907\" data-end=\"967\"\u003eIdeal for high-performance nitro helicopter applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"969\" data-end=\"987\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"988\" data-end=\"1071\"\u003e\n\u003cli data-section-id=\"1nclppm\" data-start=\"988\" data-end=\"1017\"\u003eMaterial: Annealed Copper\u003c\/li\u003e\n\u003cli data-section-id=\"1ias71t\" data-start=\"1018\" data-end=\"1048\"\u003eThickness: 0.010\" (0.25mm)\u003c\/li\u003e\n\u003cli data-section-id=\"1vmuo1q\" data-start=\"1049\" data-end=\"1071\"\u003eFinish: Raw copper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5oy33a\" data-start=\"1073\" data-end=\"1097\"\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cp data-start=\"1098\" data-end=\"1141\"\u003eCompatible with the following O.S. Engines:\u003c\/p\u003e\n\u003cul data-start=\"1142\" data-end=\"1240\"\u003e\n\u003cli data-section-id=\"1gq4zi9\" data-start=\"1142\" data-end=\"1152\"\u003e61SX-H\u003c\/li\u003e\n\u003cli data-section-id=\"hu4ag3\" data-start=\"1153\" data-end=\"1163\"\u003e70SZ-H\u003c\/li\u003e\n\u003cli data-section-id=\"8h8q36\" data-start=\"1164\" data-end=\"1172\"\u003e91HZ\u003c\/li\u003e\n\u003cli data-section-id=\"1kuf870\" data-start=\"1173\" data-end=\"1184\"\u003e91HZ-PS\u003c\/li\u003e\n\u003cli data-section-id=\"1ylmwlp\" data-start=\"1185\" data-end=\"1195\"\u003e91HZ-R\u003c\/li\u003e\n\u003cli data-section-id=\"1fi4j5u\" data-start=\"1196\" data-end=\"1218\"\u003eSpeed 91HZ-R 3D\/3C\u003c\/li\u003e\n\u003cli data-section-id=\"nj5cem\" data-start=\"1219\" data-end=\"1228\"\u003e105HZ\u003c\/li\u003e\n\u003cli data-section-id=\"1j3vlw1\" data-start=\"1229\" data-end=\"1240\"\u003e105HZ-R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5031p5\" data-start=\"1242\" data-end=\"1264\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp data-start=\"1265\" data-end=\"1518\"\u003eEnsure gasket and mating surfaces are clean and free of dirt, oil, or debris before installation. The gasket may be installed dry without sealant. If sealant is preferred, apply only a very thin layer and avoid excess material entering the exhaust port.\u003c\/p\u003e\n\u003cp data-start=\"1520\" data-end=\"1643\"\u003eFor additional sealing assistance, Lucas Red ‘N’ Tacky grease (or similar) may also be lightly applied during installation.\u003c\/p\u003e\n\u003cp data-start=\"1645\" data-end=\"1778\"\u003eBecause annealed copper is soft and conformable, handle the gasket carefully to prevent bending or deformation prior to installation.\u003c\/p\u003e\n\u003cp data-start=\"1780\" data-end=\"1907\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eProudly offered by Absolute CNC Products for enthusiasts who demand dependable performance and precision-engineered components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003cdialog class=\"group\/dialog @container inset-0 min-h-full min-w-full whitespace-normal items-center justify-center overflow-auto overscroll-y-contain bg-[rgba(0,0,0,0.5)] backdrop-blur-[1px]\"\u003e\u003c\/dialog\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Absolute CNC Products","offers":[{"title":"Default Title","offer_id":47310714175665,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/9630\/7633\/files\/4A9BC9DC-B0D3-4031-BC1D-E64D36496BDF.png?v=1779464996"},{"product_id":"absolute-cnc-products-copper-exhaust-gasket-y-s-engines","title":"Absolute CNC Products – Copper Exhaust Gasket (Y.S Engines)","description":"\u003ch3 data-section-id=\"9pn6e4\" data-start=\"51\" data-end=\"90\"\u003eY.S. 91SRX \/ 96SRX \/ 120SRX Engines\u003c\/h3\u003e\n\u003cp data-start=\"92\" data-end=\"448\"\u003eDesigned for high-performance nitro helicopter applications, the Absolute CNC Products Copper Exhaust Gasket provides a durable and reliable seal between the engine and exhaust header. Manufactured from annealed copper for excellent conformability and heat resistance, this gasket helps reduce exhaust leaks while maintaining consistent engine performance.\u003c\/p\u003e\n\u003cp data-start=\"450\" data-end=\"661\"\u003eUnlike traditional paper-style gaskets, copper construction withstands extreme exhaust temperatures and repeated heat cycles commonly experienced in aggressive 3D flying and high-performance tuning environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"663\" data-end=\"675\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"676\" data-end=\"950\"\u003e\n\u003cli data-section-id=\"1f247y7\" data-start=\"676\" data-end=\"722\"\u003ePrecision-cut annealed copper construction\u003c\/li\u003e\n\u003cli data-section-id=\"a6my06\" data-start=\"723\" data-end=\"775\"\u003eExcellent heat resistance and sealing properties\u003c\/li\u003e\n\u003cli data-section-id=\"ss4q0s\" data-start=\"776\" data-end=\"827\"\u003eReusable when properly inspected and maintained\u003c\/li\u003e\n\u003cli data-section-id=\"1w24xz5\" data-start=\"828\" data-end=\"892\"\u003eHelps reduce exhaust leaks and oil residue around the header\u003c\/li\u003e\n\u003cli data-section-id=\"99epq5\" data-start=\"893\" data-end=\"950\"\u003eCompatible with Y.S. 91SRX, 96SRX, and 120SRX engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"952\" data-end=\"970\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"971\" data-end=\"1076\"\u003e\n\u003cli data-section-id=\"1nclppm\" data-start=\"971\" data-end=\"1000\"\u003eMaterial: Annealed Copper\u003c\/li\u003e\n\u003cli data-section-id=\"1ias71t\" data-start=\"1001\" data-end=\"1031\"\u003eThickness: 0.010\" (0.25mm)\u003c\/li\u003e\n\u003cli data-section-id=\"1sui01n\" data-start=\"1032\" data-end=\"1076\"\u003eCompatibility: Y.S. 91SRX, 96SRX, 120SRX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5031p5\" data-start=\"1078\" data-end=\"1100\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp data-start=\"1101\" data-end=\"1336\"\u003eEnsure all mating surfaces are clean and free of debris before installation. The gasket may be installed dry or with a very light coating of gasket sealant if preferred. Avoid excessive sealant that could squeeze into the exhaust port.\u003c\/p\u003e\n\u003cp data-start=\"1338\" data-end=\"1474\"\u003eBecause annealed copper is soft and highly conformable, handle the gasket carefully during installation to avoid bending or deformation.\u003c\/p\u003e\n\u003cp data-start=\"1476\" data-end=\"1590\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBuilt for enthusiasts who demand reliability, consistency, and quality — proudly offered by Absolute CNC Products.\u003c\/p\u003e","brand":"Absolute CNC Products","offers":[{"title":"Default Title","offer_id":47310717780145,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/9630\/7633\/files\/C94793DD-EA73-462B-B266-D9CB552035ED.png?v=1779489804"}],"url":"https:\/\/absolutecncproducts.com\/collections\/exhaust-gaskets.oembed","provider":"Absolute CNC Products ","version":"1.0","type":"link"}