{"product_id":"wwii-wright-cyclone-r-1820-b-17-flying-fortress-radial-engine-intake-valve-seat","title":"WWII Wright Cyclone R-1820 B-17 Flying Fortress Radial Engine Intake Valve \u0026 Seat","description":"\u003cp data-start=\"269\" data-end=\"536\"\u003eAuthentic Wright Cyclone R-1820 \/ GR-series intake valve complete with its matching valve seat, originally used on aircraft such as the B-17 Flying Fortress and the Curtiss P-36 Hawk, both powered by the legendary Wright Cyclone 9 radial engine.\u003c\/p\u003e\n\u003cp data-start=\"538\" data-end=\"919\"\u003eThis genuine vintage part stands 6-½ inches tall, measures 3-5⁄8 inches across with the seat attached, and has a stem diameter of .682 inches. Made from polished steel alloy (not chrome-plated) with a two-metal seat — a hardened steel insert backed by a bronze alloy ring for heat transfer — it’s a beautifully engineered piece of 1930s–40s aviation history.\u003c\/p\u003e\n\u003cp data-start=\"921\" data-end=\"1142\"\u003ePerfect as a desk paperweight, museum display piece, or gift for collectors, pilots, or engineers. Heavy, elegant, and full of character — a real artifact from one of America’s most iconic aircraft engines.\u003c\/p\u003e\n\u003cp data-start=\"1144\" data-end=\"1163\"\u003e\u003cstrong data-start=\"1144\" data-end=\"1161\"\u003ePart Numbers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1164\" data-end=\"1207\"\u003e\n\u003cli data-start=\"1164\" data-end=\"1186\"\u003e\n\u003cp data-start=\"1166\" data-end=\"1186\"\u003eIntake Valve 69183\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1187\" data-end=\"1207\"\u003e\n\u003cp data-start=\"1189\" data-end=\"1207\"\u003eValve Seat 71543\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1209\" data-end=\"1226\"\u003e\u003cstrong data-start=\"1209\" data-end=\"1224\"\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1227\" data-end=\"1314\"\u003e\n\u003cli data-start=\"1227\" data-end=\"1255\"\u003e\n\u003cp data-start=\"1229\" data-end=\"1255\"\u003eHeight: 6.5″ (with seat)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1256\" data-end=\"1288\"\u003e\n\u003cp data-start=\"1258\" data-end=\"1288\"\u003eDiameter: 3.625″ (with seat)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1289\" data-end=\"1314\"\u003e\n\u003cp data-start=\"1291\" data-end=\"1314\"\u003eStem Diameter: 0.682″\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aviation Art | Airplane Furniture | Pilot Gifts - Plane Pieces Inc","offers":[{"title":"Default Title","offer_id":51894544204077,"sku":"sku-51536321118489","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2732\/8045\/files\/IMG_3765.jpg?v=1772866600","url":"https:\/\/www.propandpiston.com\/products\/wwii-wright-cyclone-r-1820-b-17-flying-fortress-radial-engine-intake-valve-seat","provider":"Prop and Piston","version":"1.0","type":"link"}