{"product_id":"btr-ls-lifter-tray-bolts-like-12551163-set-of-4-btr-51163-4","title":"BTR LS LIFTER TRAY BOLTS - LIKE 12551163 - SET OF 4 - BTR-51163-4","description":"\u003ch3\u003eBTR LS LIFTER TRAY BOLTS - LIKE 12551163 - SET OF 4 - BTR-51163-4\u003c\/h3\u003e \u003ch4\u003eBTR-51163-4 is a direct OEM quality replacement M6x1x19 Multi-Purpose Bolt set (quantity - 4, 1 kit required per engine) primarily used as valve lifter guide retainer bolts for General Motors LS-series engines.\u003cbr\u003e \u003cbr\u003eTechnical Specifications:\u003c\/h4\u003e \u003cp\u003eThread Size: M6 x 1.0 metric\u003cbr\u003eUnder-Head Length (UHL): 19.0 mm (0.75 inches)\u003cbr\u003eThread Length: 13.0 mm\u003cbr\u003eMaterial \u0026amp; Grade: Heat-hardened Grade 10.9 steel\u003cbr\u003eHead Type: Hex head flanged (requires a 10 mm socket)\u003c\/p\u003e \u003cp\u003eReplaces GM 12551163\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eApplication \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eEngine Fitment: Compatible with GM LS and Vortec V8 engines (1997–2014), including sizes 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L.\u003cbr\u003eFunction: Secures the plastic lifter guide trays (retainers) in the engine block.\u003cbr\u003eDesign Feature: Features a specialized bullet-shaped nose and a locator under the head to center and align the lifter tray properly.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e1 KIT REQUIRED PER ENGINE\u003c\/strong\u003e\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":47878623625372,"sku":"BTR-51163-4","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/4bolts.jpg?v=1791772993","url":"https:\/\/daroracing.com\/products\/btr-ls-lifter-tray-bolts-like-12551163-set-of-4-btr-51163-4","provider":"Daro Racing","version":"1.0","type":"link"}