{"product_id":"zippers-performance-twin-cam-sport-103-kits-harley-models-07-17-copy","title":"ZIPPERS PERFORMANCE TWIN CAM MUSCLE 103\" KITS HARLEY MODELS 07-17","description":"\u003cp\u003eZIPPERS PERFORMANCE TWIN CAM MUSCLE 103\" KITS HARLEY MODELS 07-17\u003c\/p\u003e\n\u003cp\u003eEXCHANGE KITS - CORES REQUIRED \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost the power of your 96” Twin Cam® with our Muscle 103 kit!\u003c\/strong\u003e\u003cem\u003e\u003cspan\u003e \u003c\/span\u003eThe Muscle 103 is a top end and cam kit that gets its displacement boost by increasing the cylinder bore size to 3.875”, while retaining the factory 4-3\/8” stroke. Your cylinder tops are decked for trueness and new 10.5:1 forged pistons are precision-fit using the latest Sunnen equipment, while your heads receive Zipper’s high-breathing Stage III treatment with CNC porting, new guides, oversize valves and performance springs. Zipper’s Red Shift 577 cams are perfectly matched with the heads and piston to provide big torque \u0026amp; HP across the entire RPM range. Red Shift Dual-Piston cam tensioners are included with Pro-Taper pushrods for a stable valve train and EZ-Adjust covers, with all gaskets needed for assembly. Highly recommended option: Zipper’s #417-498 blueprinted cam chest\/oil system upgrade for improved oil delivery, increasing reliability and durability.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eThis kit is also great for TC 103 owners that want to boost their power but wish to retain the 103” factory displacement.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit uses your factory head \u0026amp; cylinder cores sent in for modification. An exchange may be possible once your cores are cleaned, inspected and qualified for exchange.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ZIPPERS","offers":[{"title":"Default Title","offer_id":55573669806248,"sku":null,"price":5399.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/8273\/6552\/files\/ZIP_SPORT_KIT_0ecdb4b3-fa8a-4182-a184-e18bd6fc8e57.jpg?v=1780288231","url":"https:\/\/speedguyscanada.com\/products\/zippers-performance-twin-cam-sport-103-kits-harley-models-07-17-copy","provider":"THE SPEED GUYS CANADA ","version":"1.0","type":"link"}