{"product_id":"ls-gen-iii-4-8-5-3-5-7-6-0-valve-springs-1997-2007-btr-12713265","title":"LS Gen III 4.8\/5.3\/5.7\/6.0 Valve Springs 1997-2007 BTR 12713265","description":"\u003cp\u003eBTR valve spring kit for the LS Gen III 4.8\/5.3\/5.7\/6.0 (1997-2007). Listed for one application: LS Gen III 4.8\/5.3\/5.7\/6.0 engines, 1997-2007, in Chevrolet, GMC, Pontiac, Cadillac applications. Confirm your engine code and year against this listing before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\u003cp\u003eValve springs close the valve and keep the lifter on the lobe. Tired springs float valves at high rpm and break under aggressive cams. A matched spring kit with the right installed height, seat pressure and retainers is required for any cam swap and cures high-rpm misfire on a high-mileage engine.\u003c\/p\u003e\n\u003ch3\u003eFits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChevrolet vehicles with the LS Gen III 4.8\/5.3\/5.7\/6.0 engine, 1997-2007\u003c\/li\u003e\n\u003cli\u003eGMC vehicles with the LS Gen III 4.8\/5.3\/5.7\/6.0 engine, 1997-2007\u003c\/li\u003e\n\u003cli\u003ePontiac vehicles with the LS Gen III 4.8\/5.3\/5.7\/6.0 engine, 1997-2007\u003c\/li\u003e\n\u003cli\u003eCadillac vehicles with the LS Gen III 4.8\/5.3\/5.7\/6.0 engine, 1997-2007\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFixes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003evalve float or misfire at high rpm\u003c\/li\u003e\n\u003cli\u003ea broken spring (the cylinder goes dead instantly)\u003c\/li\u003e\n\u003cli\u003eany camshaft upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ea full engine set of springs\u003c\/li\u003e\n\u003cli\u003eretainers, locks and seats where the kit lists them\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: BTR\u003c\/li\u003e\n\u003cli\u003ePart number: 12713265\u003c\/li\u003e\n\u003cli\u003eShipping weight: 3.7 lb\u003c\/li\u003e\n\u003cli\u003ePackage size: 12.24 x 4.65 x 4.57 in\u003c\/li\u003e\n\u003cli\u003eCondition: new\u003c\/li\u003e\n\u003cli\u003eProduct type: Valve Springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCross-reference\u003c\/h3\u003e\u003cp\u003eReplaces or interchanges with BTR 12713265 for the LS Gen III 4.8\/5.3\/5.7\/6.0. Check the part number stamped on your original before ordering.\u003c\/p\u003e\n\u003cp\u003eFree shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? \u003ca href=\"\/pages\/contact\"\u003eAsk a tech\u003c\/a\u003e before you buy.\u003c\/p\u003e","brand":"BTR","offers":[{"title":"Default Title","offer_id":54871531061461,"sku":"CPP-LSG3-VSPR-07","price":210.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3835\/6181\/files\/ls-gen-iii-4-8-5-3-5-7-6-0-valve-springs-1997-2007-1_72da1b26-c127-4cc7-9086-0899d0c311bf.jpg?v=1788928137","url":"https:\/\/corepowertrainparts.com\/products\/ls-gen-iii-4-8-5-3-5-7-6-0-valve-springs-1997-2007-btr-12713265","provider":"CorePowertrainParts.com","version":"1.0","type":"link"}