{"product_id":"btr-625-lift-conical-ls7-valve-spring-kit-bronze-valve-guides-sk021-6545","title":"BTR .625\" LIFT CONICAL LS7 VALVE SPRING KIT - BRONZE VALVE GUIDES - SK021\/6545","description":"\u003cp\u003e\u003cstrong\u003eBTR .625\" LIFT CONICAL LS7 VALVE SPRING KIT - BRONZE VALVE GUIDES - SK021\/6545\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eBTR is proud to introduce our new SK021 conical style valve spring kit. This is a great option for camshafts using less than .625\" valve lift. This budget friendly valve spring kit was designed to use our conical locator, and BTR offset locks, but use the OEM LS7 retainer. Features include tumble polishing for reduced stress risers and a quality appearance.\u003c\/p\u003e \u003cp\u003eThe BTR SK021 valve spring kit works for LS7 applications, and whether you're looking for longevity in street applications, or for use in single valve spring only limited racing classes, BTR has you covered. As with all BTR valve springs, they have been extensively tested on our in house Spintron machine and engine dyno.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eParts included in this kit: \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e- SP014-1 valve spring (QTY 16)\u003c\/p\u003e \u003cp\u003e- VS LS KIT valve seal set\u003c\/p\u003e \u003cp\u003e- SL565045CON-16 valve spring locator set (0.045\" Thickness \/ 0.565\" ID for Bronze guides)\u003c\/p\u003e \u003cp\u003e- BS030-1 valve spring shims for exhaust (QTY 8)\u003c\/p\u003e \u003cp\u003e- VL78MMBL-.075 valve locks for intake (QTY 8 pairs)\u003c\/p\u003e \u003cp\u003e- VLM78MMLSBL+.050 valve locks for exhaust (QTY 8 pairs)\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eValve spring specs: \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e160 LB SEAT @ 1.875\" INSTALL HEIGHT\u003c\/p\u003e \u003cp\u003e395 LB OPEN @ 1.225\"\u003c\/p\u003e \u003cp\u003eCOIL BIND @ 1.165\"\u003c\/p\u003e \u003cp\u003eNOTE - BTR does not recommend single wire conical or beehive springs with roller rockers due to the extra mass causing loss of valve train stability, or the use of a higher ratio rocker as it could possibly cause a coil bind issue.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":47878567493788,"sku":"SK021\/6545","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/sk021.jpg?v=1791772760","url":"https:\/\/daroracing.com\/products\/btr-625-lift-conical-ls7-valve-spring-kit-bronze-valve-guides-sk021-6545","provider":"Daro Racing","version":"1.0","type":"link"}