{"product_id":"comp-cams-rotator-eliminator-cb-exh","title":"Seat BBC 1.568\" OD .623\" ID .300\" Thick","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 4779-1\u003c\/p\u003e\u003cp\u003eThe old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines. COMP Cams offers a simple but effective solution to this problem. These Valve Spring Locators provide a thin, hardened Steel alloy seat that will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup so COMP now offers an ID locator with the locating shoulder on the inside, as well as the spring cup.\u003c\/p\u003e\u003cp\u003eAvoid stacking .300\" of shims under the valve spring on your Big Block Chevrolet with our seat spacer. This spacer features a 1.732\" outer diameter for 1.568\" outer diameter springs.\u003c\/p\u003e\u003cp\u003eThis product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":51783852196152,"sku":"C007 4779-1","price":29.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/horsepower-asset-426438-4777858-square_fe2b8342-4662-4ba3-892d-87af752dac99.webp?v=1778287896","url":"https:\/\/store.motormia.co\/products\/comp-cams-rotator-eliminator-cb-exh","provider":"MOTORMIA","version":"1.0","type":"link"}