{"product_id":"arc-racing-6522hd-heavy-duty-wrist-pin-490-x-2-075-extended-stroker-open-class","title":"ARC Racing 6522HD Heavy Duty Wrist Pin - .490\" x 2.075\" Extended Stroker - Open Class","description":"\u003cp\u003ePushing your racing go kart engine to the absolute limit requires internal components that refuse to yield under extreme cylinder pressures. The ARC Racing 6522HD Heavy Duty Wrist Pin is engineered specifically for extended stroker setups, providing the critical stabilization your piston crown demands during maximum compression. When you are building a high-horsepower open class motor, standard pins flex and bind, robbing you of top-end RPMs and risking catastrophic failure. This .490\" x 2.075\" extended pin eliminates deflection, ensuring cleaner combustion and a friction-free path to the checkered flag.\u003c\/p\u003e\u003ch2\u003eBeyond the Basics: Building a Bulletproof Stroker\u003c\/h2\u003e\u003cp\u003eSerious racers know that a winning machine is a sum of its parts. Just as you wouldn't compromise on the parts of a wheel hub assembly or settle for subpar brake oil when diving into a hairpin, you cannot afford weak links inside your crankcase. The ARC 6522HD wrist pin extends support deeper into the rod bores, distributing the immense loads generated by big-bore, long-stroke combinations. This translates to smoother power delivery the moment you smash the go kart pedals out of the apex.\u003c\/p\u003e\u003ch2\u003eEngineered for Extreme Heat Cycles and Open Class Dominance\u003c\/h2\u003e\u003cp\u003eHeavy-duty construction means this wrist pin survives the brutal heat cycles and violent RPM spikes of competitive karting. Whether you are bolting this into a fresh block or dropping it into a bare go kart frame for sale that you are building from the ground up, this pin ensures your piston remains perfectly aligned. Pair it with high-quality C-clip retainers for foolproof retention and peace of mind at 9,000+ RPM.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended 2.075\" Length:\u003c\/strong\u003e Provides deeper engagement in rod bores for maximum stability in stroker applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard .490\" Diameter:\u003c\/strong\u003e Perfectly matches standard GX200 and 196cc Clone pistons for seamless integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Wall Thickness:\u003c\/strong\u003e Fights pin deflection and piston rock under extreme open-class compression ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction-Reducing Finish:\u003c\/strong\u003e Smooths the rotational path, reducing bind and freeing up high-RPM horsepower.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Shock Resistance:\u003c\/strong\u003e Forged to survive the brutal heat cycles of prolonged wide-open-throttle racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machined:\u003c\/strong\u003e Ensures exact tolerances for foolproof retention when paired with standard C-clips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why do I need an extended wrist pin for my stroker engine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e In stroker applications, the piston often travels further down the bore. An extended wrist pin like the 6522HD provides deeper engagement within the connecting rod bores, which is critical for preventing pin deflection and maintaining structural integrity under high compression.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this wrist pin compatible with standard GX200 or Clone pistons?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the .490\" diameter is designed to fit standard GX200 and 196cc Clone pistons perfectly, making it an ideal upgrade for modified or open-class builds using these platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What should I use to secure this wrist pin?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e We highly recommend using high-quality, heavy-duty C-clip retainers. Because this pin is used in high-RPM open-class engines, ensuring your retainers are properly seated is essential for preventing catastrophic engine failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does this pin help with high-RPM performance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The 6522HD features a friction-reducing finish and heavy-duty wall thickness. This combination minimizes pin flex and internal bind, allowing the engine to rev more freely and reliably at 9,000+ RPM.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc6573-arc-billet-clone-stroker-crank-175-stroke-arc6573\"\u003eARC Billet Clone Stroker Crank with +0.175 Inch Stroke for Enhanced Power\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/6265-arc-gx200-billet-rod-3-625-stroker-arc6265\"\u003eARC Racing GX200 Billet Stroker Rod 3.625\" - .490\" Wrist Pin - Modified Clone Class\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/6234-arc-gx200-billet-rod-3-595-with-490-pin-bore-arc6234\"\u003eARC Racing GX200 Billet Connecting Rod - 3.595\" Length \/ .490\" Pin Bore - Modified Clone Class\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc6521-heavy-duty-wrist-pin-490-x-1-885-arc6521\"\u003eARC Racing 6521 Heavy Duty Wrist Pin - .490\" x 1.885\" - Modified Stroker\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arc-rod-bolts-flathead-stroker-rods-clone-billet-rod-6383-pair-arc6383\"\u003eARC #6383 Pair of Rod Bolts for Stroker and Billet Clone Rods\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SwiftKarting","offers":[{"title":"Default Title","offer_id":52379222966591,"sku":"ARC6522","price":48.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6843\/4239\/files\/strokerparts-arc6522hd-heavy-duty-wrist-pin-490-x-2-075-arc6522.jpg?v=1773222193","url":"https:\/\/metro-merch-3.myshopify.com\/products\/arc-racing-6522hd-heavy-duty-wrist-pin-490-x-2-075-extended-stroker-open-class","provider":"Metro Merch","version":"1.0","type":"link"}