{"product_id":"rocker-arm-nut-polylock-outside-diameter-600-inch-scorpion-racing-products","title":"Rocker Arm Nut Polylock Outside Diameter .600 inch Scorpion Racing Products","description":"\u003cp\u003ePolylock Endurance Series - Scorpion Racing Products 7\/16 Endurance Series Polylock - Short Rocker Arm Nut\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh performance, hardened steel\u003c\/li\u003e\n\u003cli\u003eMade from 4140 machined steel with a black oxide coating for surface protection\u003c\/li\u003e\n\u003cli\u003eOverall Length 1.050 inch\u003c\/li\u003e\n\u003cli\u003eOutside Diameter .600 inch\u003c\/li\u003e\n\u003cli\u003eSet of 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA Polylock is an adjustable rocker arm nut. They are used with Stud Mount Rocker Arms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do they work?\u003c\/strong\u003e\u003cbr\u003eA polylock features a threaded body and a set screw. \u003cbr\u003eThe body screws over the stud and holds the rocker arm in place. Then, the set screw is tightened down against the stud. This locks the body in place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy would I need them?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePolylocks make adjusting you valvetrain much easier. They are useful when Setting Preload on hydraulic lifters. They are required to Set Valve Lash on solid lifters.\u003c\/p\u003e\n\u003cp\u003ePolylocks also come in various lengths. The longer body sticks up above the rockers to attach a Stud Girdle\u003c\/p\u003e\n","brand":"Scorpion Racing","offers":[{"title":"Default Title","offer_id":44405344665651,"sku":"SCPPL716SH-4-GRKT","price":16.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/7889\/7971\/files\/SCPPL716SH-4-GRKT.jpg?v=1780557151","url":"https:\/\/scorpionracingproducts.com\/products\/rocker-arm-nut-polylock-outside-diameter-600-inch-scorpion-racing-products","provider":"Scorpion Racing","version":"1.0","type":"link"}