{"product_id":"motorshop-11-2709-replica-900cc-3-inch-piston-set-030-oversize-for-harley-davidson-xl","title":"Motorshop 11-2709 Replica 900cc 3-Inch Piston Set .030 Oversize for Harley-Davidson XL","description":"Replica 3 inch bore piston set has a 9:1 compression ratio and is .030 oversize. Set includes a piston ring set  2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.\n\u003cp\u003eThe Motorshop 11-2709 Replica 900cc 3-inch Piston Set .030 Oversize is designed for compatible Harley-Davidson XL engine applications from 1957 through 1966. This piston set supports engine rebuilding and replacement projects requiring an oversize piston configuration, helping restore proper cylinder performance when used with correctly prepared components. It is supplied as a kit for convenient installation during a complete top-end service or engine overhaul.\u003cbr\u003eThe .030 oversize specification is intended for cylinders that have been professionally inspected and machined to the appropriate clearance. Confirm cylinder condition, bore measurements, piston-to-cylinder clearance, ring end gap, and wrist pin fit before assembly. Proper preparation and precise measurement are essential for dependable operation and long service life. Always follow applicable service procedures and use suitable assembly tools when installing the pistons, rings, wrist pins, and related components.\u003cbr\u003eAfter installation, run the engine at moderate speeds for at least 500 miles. Avoid excessive operation in lower gears during the break-in period so the new pistons and rings can properly seat. Vary operating conditions as appropriate, monitor engine performance, and complete all recommended break-in and inspection procedures. The kit is manufactured in Taiwan and is identified by Motorshop part number 11-2709.\u003cbr\u003eThis piston set fits 1957-1966 Harley-Davidson XL models, including XL applications from 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, and 1966. Verify the motorcycle year, engine configuration, bore requirements, and oversize specification before ordering. For related installation needs, compatible suggested items include a .030 oversize 900cc piston ring set and piston wrist pin locks.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Motorshop\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 11-2709\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProduct Type: Replica 900cc piston set\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOversize: .030 oversize for properly machined cylinders\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Harley-Davidson XL models from 1957 through 1966\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngine Application: 900cc\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBreak-In Requirement: Run at moderate speeds for at least 500 miles while avoiding excessive operation in lower gears\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCountry of Origin: Taiwan\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUnit of Measure: Kit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuggested Items: 11-1727 - 900cc Piston Ring Set .030 Oversize, 12-0929 - Piston Wrist Pin Lock\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAccessory Items: 16-0029 - Connecting Rod Clamping Tool, 60-0167, 16-0622 - Ring-O-Matic Ring Compressor Tool Kit, 11-2710 - Replica 900cc 3 Inch Piston Set .040 Oversize\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment\u003cbr\u003e\nHarley Davidson XL  1957\u003cbr\u003e\nHarley Davidson XL  1958\u003cbr\u003e\nHarley Davidson XL  1959\u003cbr\u003e\nHarley Davidson XL  1960\u003cbr\u003e\nHarley Davidson XL  1961\u003cbr\u003e\nHarley Davidson XL  1962\u003cbr\u003e\nHarley Davidson XL  1963\u003cbr\u003e\nHarley Davidson XL  1964\u003cbr\u003e\nHarley Davidson XL  1965\u003cbr\u003e\nHarley Davidson XL  1966\u003cbr\u003e\nHarley Davidson XL  1967\u003cbr\u003e\nHarley Davidson XL  1968\u003cbr\u003e\nHarley Davidson XL  1969\u003cbr\u003e\nHarley Davidson XL  1970\u003cbr\u003e\nHarley Davidson XL  1971","brand":"Motorshop","offers":[{"title":"Default Title","offer_id":44850101256234,"sku":"11-2709","price":127.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-2709a.jpg?v=1789449288","url":"https:\/\/atticusgoods.com\/products\/motorshop-11-2709-replica-900cc-3-inch-piston-set-030-oversize-for-harley-davidson-xl","provider":"Atticus Goods","version":"1.0","type":"link"}