{"product_id":"sales-ad-gm-3818763-nos-valve-spring-retainer-chevrolet-235-261-265-283-early-327","title":"SALES AD — GM 3818763 NOS Valve Spring Retainer — Chevrolet 235 \/ 261 \/ 265 \/ 283 \/ Early 327","description":"\u003cp\u003eBOTTOM CENTER OF PICTURE\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eSALES AD — GM 3818763\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003e\u003cstrong\u003eNOS Valve Spring Retainer — Chevrolet 235 \/ 261 \/ 265 \/ 283 \/ Early 327\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBring your early Chevrolet engine back to factory‑correct condition with this \u003cstrong\u003eNew Old Stock GM 3818763 Valve Spring Retainer\u003c\/strong\u003e, a genuine Group \u003cstrong\u003e0.851\u003c\/strong\u003e valvetrain component used across Chevrolet inline‑six and small‑block V8 engines from the late 1950s into the early 1960s.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis hardened‑steel retainer locks the valve spring to the valve stem using standard 7° keepers, ensuring proper valve control and long‑term reliability. Perfect for restorations, period‑correct rebuilds, or stocking your vintage GM engine hardware inventory.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e✔ \u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenuine \u003cstrong\u003eGM NOS\u003c\/strong\u003e part\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCorrect \u003cstrong\u003eGroup 0.851\u003c\/strong\u003e valve‑spring retainer\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHardened steel construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits early Chevrolet I6 and SBC engines\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for stock restorations and OEM‑spec rebuilds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e✔ \u003cstrong\u003eFitment Highlights\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eChevrolet Inline‑6\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e235\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e261\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eChevrolet Small‑Block V8\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e265\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e283\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEarly 327 (select heads)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUsed across:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePassenger cars\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLight trucks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial engines\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e✔ \u003cstrong\u003eCondition\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNOS (New Old Stock)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eClean, original GM hardware — no reproductions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CorvairFarmer","offers":[{"title":"Default Title","offer_id":48460161745147,"sku":null,"price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/3740\/8251\/files\/aa_d5dc5233-d82d-405d-bf5b-462c0b261ec9.jpg?v=1773879446","url":"https:\/\/corvairfarmer.com\/products\/sales-ad-gm-3818763-nos-valve-spring-retainer-chevrolet-235-261-265-283-early-327","provider":"CorvairFarmer","version":"1.0","type":"link"}