{"product_id":"s-s-cycle-top-end-guardian-kit-17-26-harley-davidson-m8-models-copy","title":"S\u0026S CYCLE TOP END GUARDIAN KIT 17-26 HARLEY DAVIDSON M8 MODELS","description":"\u003cp\u003eS\u0026amp;S CYCLE TOP END GUARDIAN KIT 17-26 HARLEY DAVIDSON M8 MODELS\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRocker Arm shafts, Rocker Arm Stud Kit, Head Bolt Kit and Performance Roller Rocker Arms are included in this kit\u003c\/li\u003e\n\u003cli\u003eRocker Arm Shafts\u003c\/li\u003e\n\u003cli\u003eReplace broken or worn OEM pieces with stronger, more durable S\u0026amp;S performance parts\u003c\/li\u003e\n\u003cli\u003eDirect replacement for stock parts\u003c\/li\u003e\n\u003cli\u003eHardened and surface ground for ultimate precision and durability\u003c\/li\u003e\n\u003cli\u003eRocker Arm Stud Kit\u003c\/li\u003e\n\u003cli\u003eExtend the life of your cylinder heads\u003c\/li\u003e\n\u003cli\u003ePrevent damage to Rocker Arm Towers\u003c\/li\u003e\n\u003cli\u003eInstall studs and safely re-torque nuts\u003c\/li\u003e\n\u003cli\u003eBlack Oxide Finish\u003c\/li\u003e\n\u003cli\u003e12 pt Nuts\u003c\/li\u003e\n\u003cli\u003eHead Bolt Kit\u003c\/li\u003e\n\u003cli\u003eHeat Treated 8640 Steel\u003c\/li\u003e\n\u003cli\u003e200,000 psi Ultimate Tensile Strength\u003c\/li\u003e\n\u003cli\u003e14% increases in strength over stock\u003c\/li\u003e\n\u003cli\u003eStronger material than stock Head bolts\u003c\/li\u003e\n\u003cli\u003eDurable Black Oxide Coating\u003c\/li\u003e\n\u003cli\u003e9\/16\" 12 point head with integral washer\u003c\/li\u003e\n\u003cli\u003eFormed threads\u003c\/li\u003e\n\u003cli\u003eCold Formed Head\u003c\/li\u003e\n\u003cli\u003eReusable\u003c\/li\u003e\n\u003cli\u003eForged Roller Rocker Arms\u003c\/li\u003e\n\u003cli\u003eForged from 8620 steel for greater strength\u003c\/li\u003e\n\u003cli\u003eDesigned using Finite Element Analysis (FEA)\u003c\/li\u003e\n\u003cli\u003eRollers eliminate thrusting on valves for decreased wear on the valve train\u003c\/li\u003e\n\u003cli\u003eRocker geometry is better suited to high lift cams\u003c\/li\u003e\n\u003cli\u003eLarger surface area on the thrust surfaces reduces wear on the heads\u003c\/li\u003e\n\u003cli\u003eBushings are 50% longer than stock, increasing time between rebuilds\u003c\/li\u003e\n\u003cli\u003eCompatible with stock or S\u0026amp;S CNC heads\u003c\/li\u003e\n\u003cli\u003eOil is sprayed directly on the valve springs, reducing potential for breaking a valve due to over-heating (stock rockers tend to oil the rocker boxes, not the valves)\u003c\/li\u003e\n\u003cli\u003e1.640 Ratio\u003c\/li\u003e\n\u003cli\u003eCapable of .650\" max Valve Lift\u003c\/li\u003e\n\u003cli\u003eServiceable and rebuildable for generations of durabilty\u003c\/li\u003e\n\u003cli\u003eA must have for cams with .550\" or greater lift\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ss cycle","offers":[{"title":"Default Title","offer_id":44074014212183,"sku":"900-1092","price":630.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/2276\/2583\/products\/ssguardiankitm8.png?v=1672880055","url":"https:\/\/valleyspeed.net\/en-gb\/products\/s-s-cycle-top-end-guardian-kit-17-26-harley-davidson-m8-models-copy","provider":"The Speed Shop Canada","version":"1.0","type":"link"}