{"product_id":"comp-cams-valve-seals-steel-jacketed-viton-seal-500-guide-313-valve-co511-16","title":"COMP CAMS VALVE SEALS STEEL JACKETED VITON SEAL .500\" GUIDE .313\" VALVE CO511-16","description":"\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\n\u003cstrong\u003eCOMP CAMS VALVE SEALS STEEL JACKETED VITON SEAL .500\" GUIDE .313\" VALVE CO511-16\u003c\/strong\u003e\u003cdiv\u003eCOMP Cams offers a complete line of valve seals, from the stock GM O-rings to the positive-stop PTFE seals. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The O-ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter VitonÂ® seals. \u003cstrong\u003eSpecs:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eValve Stem Diameter:0.313 in.\u003cdiv\u003eValve Stem Seal Type:Positive stop\u003c\/div\u003e\n\u003cdiv\u003eValve Stem Seal Material:VitonÂ®\u003c\/div\u003e\n\u003cdiv\u003eMachine Work Required:No\u003c\/div\u003e\n\u003cdiv\u003eValve Guide Diameter (in):0.500 in.\u003c\/div\u003e\n\u003cdiv\u003eQuantity:Sold as a set of 16.\u003c\/div\u003e\n\u003cdiv\u003eNotes:Designed for Chevrolet LS1.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e.\u003cbr\u003e\u003cbr\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":44554426286391,"sku":"CO511-16","price":85.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/61850.jpg?v=1780795372","url":"https:\/\/enginemaster.com.au\/products\/comp-cams-valve-seals-steel-jacketed-viton-seal-500-guide-313-valve-co511-16","provider":"Engine Master","version":"1.0","type":"link"}