{"product_id":"s-s-cycle-3-7-16-in-050-in-36-84-bt-high-compression-stroker-piston-set-part-number-106-5778","title":"S\u0026S Cycle 3-7\/16 in +.050 in 36-84 BT High-Compression Stroker Piston Set, Part Number 106-5778","description":"These 3-7\/16\" +.050\" bore, standard compression stroker pistons are part of an S\u0026amp;S stock bore stroker kit for 1936-'84 HD® big twins, and are designed to be used in conjunction with S\u0026amp;S® stroker flywheels. Flywheels of the following strokes may be used for the following displacements: 4-1\/2\" stroke - 84\" @ 8.4:1 compression, 4-5\/8\" stroke - 86\" @ 9.4:1 compression, 4-3\/4\" stroke - 88\" @10.8:1 compression.\n\u003cul\u003e\n  \u003cli\u003eThe modern alloys used in these pistons, coupled with the advanced skirt profiles, allow them to be fit tighter resulting in low engine noise and long engine life\u003c\/li\u003e\n  \u003cli\u003eThese pistons are normally used in stock HD® cylinders, and must be purchased separately, based on the required piston oversize\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eS\u0026amp;S Cycle high-compression stroker piston set, part number 106-5778, features a 3-7\/16-inch bore with a +.050-inch oversize and is designed for use with S\u0026amp;S stroker flywheels in 1936–1984 Harley-Davidson big twin applications. The pistons may be used with 4-1\/2-inch, 4-5\/8-inch, and 4-3\/4-inch stroke flywheels for listed displacements of 84, 86, and 88 cubic inches, respectively.\u003c\/p\u003e\u003cp\u003eWith a 4-1\/2-inch stroke, the combination is listed at 84 cubic inches and 8.4:1 compression; with a 4-5\/8-inch stroke, it is listed at 86 cubic inches and 9.4:1 compression; and with a 4-3\/4-inch stroke, it is listed at 88 cubic inches and 10.8:1 compression. Modern piston alloys and advanced skirt profiles allow tighter fitting, supporting reduced engine noise and long engine life.\u003c\/p\u003e\u003cp\u003eThese pistons are normally used in stock Harley-Davidson cylinders. The required piston oversize must be selected based on the cylinder application. Listed fitment includes 1941–1945 Harley-Davidson EL and FL models. Manufacturer part number: 106-5778. Vendor part number: 106-5778.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: S\u0026amp;S Cycle\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 106-5778\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 106-5778\u003c\/li\u003e\n\u003cli\u003eBore: 3-7\/16 inches with +.050-inch oversize\u003c\/li\u003e\n\u003cli\u003eApplication: S\u0026amp;S stock bore stroker kit for 1936–1984 Harley-Davidson big twins\u003c\/li\u003e\n\u003cli\u003eStroker Compatibility: Designed for use with S\u0026amp;S stroker flywheels measuring 4-1\/2, 4-5\/8, or 4-3\/4 inches in stroke\u003c\/li\u003e\n\u003cli\u003eListed Displacements: 84, 86, or 88 cubic inches depending on stroke\u003c\/li\u003e\n\u003cli\u003eListed Compression Ratios: 8.4:1, 9.4:1, or 10.8:1 depending on stroke\u003c\/li\u003e\n\u003cli\u003eCylinder Use: Normally used in stock Harley-Davidson cylinders\u003c\/li\u003e\n\u003cli\u003eFitment: 1941–1945 Harley-Davidson EL and FL models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: true\u003cbr\u003e\nCarb Acknowledgement Required: true\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Unknown\u003cbr\u003e\nPart Type: powersports\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nRegular Stock: false\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\n1941 Harley Davidson EL Base\u003cbr\u003e\n1941 Harley Davidson FL Base\u003cbr\u003e\n1942 Harley Davidson EL Base\u003cbr\u003e\n1942 Harley Davidson FL Base\u003cbr\u003e\n1943 Harley Davidson EL Base\u003cbr\u003e\n1943 Harley Davidson FL Base\u003cbr\u003e\n1944 Harley Davidson EL Base\u003cbr\u003e\n1944 Harley Davidson FL Base\u003cbr\u003e\n1945 Harley Davidson EL Base\u003cbr\u003e\n1945 Harley Davidson FL Base\u003cbr\u003e\n1946 Harley Davidson EL Base\u003cbr\u003e\n1946 Harley Davidson FL Base\u003cbr\u003e\n1947 Harley Davidson EL Base\u003cbr\u003e\n1947 Harley Davidson FL Base\u003cbr\u003e\n1948 Harley Davidson FL Base\u003cbr\u003e\n1949 Harley Davidson FL Base\u003cbr\u003e\n1950 Harley Davidson FL Base\u003cbr\u003e\n1951 Harley Davidson FL Base\u003cbr\u003e\n1952 Harley Davidson FL Base\u003cbr\u003e\n1953 Harley Davidson FL Base\u003cbr\u003e\n1953 Harley Davidson FLF Base\u003cbr\u003e\n1954 Harley Davidson FL Base\u003cbr\u003e\n1955 Harley Davidson FL Base\u003cbr\u003e\n1955 Harley Davidson FLF Base\u003cbr\u003e\n1955 Harley Davidson FLH Hydra-Glide Base\u003cbr\u003e\n1955 Harley Davidson FLHF Base\u003cbr\u003e\n1956 Harley Davidson FL Base\u003cbr\u003e\n1956 Harley Davidson FLF Base\u003cbr\u003e\n1956 Harley Davidson FLH Hydra-Glide Base\u003cbr\u003e\n1956 Harley Davidson FLHF Base\u003cbr\u003e\n1957 Harley Davidson FL Base\u003cbr\u003e\n1957 Harley Davidson FLF Base\u003cbr\u003e\n1957 Harley Davidson FLH Hydra-Glide Base\u003cbr\u003e\n1957 Harley Davidson FLHF Base\u003cbr\u003e\n1958 Harley Davidson FL Base\u003cbr\u003e\n1958 Harley Davidson FLF Base\u003cbr\u003e\n1958 Harley Davidson FLH Duo-Glide Base\u003cbr\u003e\n1958 Harley Davidson FLHF Base\u003cbr\u003e\n1959 Harley Davidson FL Base\u003cbr\u003e\n1959 Harley Davidson FLF Base\u003cbr\u003e\n1959 Harley Davidson FLH Duo-Glide Base\u003cbr\u003e\n1959 Harley Davidson FLHF Base\u003cbr\u003e\n1960 Harley Davidson FL Base\u003cbr\u003e\n1961 Harley Davidson FL Base\u003cbr\u003e\n1962 Harley Davidson FL Base\u003cbr\u003e\n1970 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1971 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1971 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1972 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1972 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1973 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1973 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1974 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1974 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1975 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1975 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1976 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1976 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1977 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1977 Harley Davidson FX Super Glide Base\u003cbr\u003e\n1978 Harley Davidson FLH Electra Glide Base\u003cbr\u003e\n1978 Harley Davidson FX Super Glide Base","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":68301974995179,"sku":"662184","price":469.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/a769f81219c2e34c47e9566f77dfbf1c.png?v=1793241792","url":"https:\/\/ctracingservices.com\/products\/s-s-cycle-3-7-16-in-050-in-36-84-bt-high-compression-stroker-piston-set-part-number-106-5778","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}