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    1977 Yamaha
    DT250
    Specs/Edit

    S&S Cycle Natural Aluminum 96" Sidewinder Big Bore Stroker Kit (3 5/8" Bore) - 91-7660

    Natural Aluminum 96
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    S&S Cycle Natural Aluminum 96" Sidewinder Big Bore Stroker Kit (3 5/8" Bore) - 91-7660

    MSRP: $2,564.95

    Price: $2308.46 10% off!
    Item DOES NOT fit your 1977 Yamaha DT250
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    S&S Cycle Natural Aluminum 96" Sidewinder Big Bore Stroker Kit (3 5/8" Bore)
    • 3 5/8" bore
    • Kit includes forged pistons, 4 5/8" stroke dynamically balanced S&S flywheel assembly, complete with S&S heavy duty connecting rods and mainshafts, head gaskes, base gaskes and exhaust gaskets
    • 9.75:1 compression ratio
    • Cylinder length:  5.565"
    • Available in natural aluminum or wrinkle black powder-coat cylinder finishes
    • Recommended usage: Street or Strip

    NOTE:  Crankcases must be bored to accept larger 3-5/8" bore cylinders

    IMPORTANT: 1977-’89 style pinion gears, spacer, and nut are required when installing S&S flywheel assemblies. For installation in 1990-’99 or scratch built engines, order S&S Pinion Shaft Conversion Kit 14-8910

     



    Included Items:

    (1) Flywheel assembly

    (1) Retaining ring

    (2) Half moon keys

    (2) Cylinders

    (2) Pistons

    (2) Wrist pins

    (4) Cir-clips

    (4) Bushings

    (2) Top rings

    (2) Second rings

    (2) Spacer rings

    (4) Oil rings

    (2) Base gaskets

    (2) Head gaskets

    (2) Exhaust gaskets

    (1) 1 oz. Engine lube
    Mfg. Price Controlled Item
    Due to the manufacturer's advertising policy - this item is excluded from promotions and discounts details
    Specifications
    Bore Size 3.625 in.
    Compression Ratio 9.75:1
    Finish Unfinished
    Mfg #: 91-7660
    Part #: 1401024
    Type Big Bore Kit
    Units Each
    Weight 66.70 lbs
    Vendor Part Number(s):
    09031257
    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
    Resources & Manuals
    Instruction Manual 1.5 MiB
    Instruction Manual 445.6 KiB
    Instruction Manual 1.7 MiB
    Instruction Manual 427.1 KiB
    Fitment for S&S Cycle Natural Aluminum 96" Sidewinder Big Bore Stroker Kit (3 5/8" Bore)

    Part 1401024 fits the following machines

    Harley-Davidson
    1995 1996 1997 1998 1999
    1992
    1992
    1993 1994 1995 1996 1997 1998 1999
    1994
    1991
    1995 1996 1997 1998 1999
    1999
    1993 1994 1995 1996 1997 1998 1999
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    1985 1986 1987
    1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1995 1996 1997 1998 1999
    1984 1985
    1987 1988 1989 1990 1991 1992 1993
    1995 1996 1997 1998 1999
    1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1995 1996 1997 1998 1999
    1999
    1999
    1986 1987 1988 1989 1990
    1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1993
    1994 1995 1996
    1997 1998 1999
    1984 1985
    1985
    1986 1987 1988 1989 1990 1991 1992 1993
    1984 1985
    1987
    1990 1991 1992 1993
    1987 1988 1989 1990 1991 1992 1993 1994
    1986 1987 1988 1989 1990 1991 1992 1993
    1998 1999
    1998 1999
    1994 1995 1996 1997 1998 1999
    1998 1999
    1996 1997 1998 1999
    1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
    1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1999
    1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
    1995 1996 1997
    1999
    1985 1986 1987 1988 1989 1990 1991 1992 1993
    1984
    1984
    1986
    1984
    1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994
    1985
    1985 1986 1987 1988 1989 1990 1991 1992 1993 1994
    1984
    1984
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    1996
    1984 1985 1986

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