Engine
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S&S Cycle Powerpak Oilcool 4.320"Bore 4 1/2"Stroke 550G Cam Bgw/Hi M8 310-1238C
S&S CYCLE
MSRP: $3,453.47$3,003.02Features550 lift for the ideal combination of horse power and torquePowder coat finish matched to factoryMLS (Multi-Layered Steel) head gasketsIncludes 129 or 132 cam cover badgeMade in the USA Position Notes 2017-2023Harley-DavidsonFLHX Street...MSRP: $3,453.47$3,003.02 -
S&S Cycle Big Bore Kt Hc 136/132 4.320"Bore Blkgrnt W/Hlfins M8'17-25 910-0911A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonElectra Glide Police ...MSRP: $1,651.24$1,435.86 -
S&S Cycle Big Bore Kit Hc 136/132 4.320"Bore Blk Nohl Fins M8 2017-25 910-0910A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonFLHRXS Road King...MSRP: $1,651.24$1,435.86 -
S&S Cycle Big Bore Kit Hc 136/132 4.320"Bore Blk W/Hl Fins M8 2017-25 910-0909A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonFLHRXS Road King...MSRP: $1,651.24$1,435.86 -
S&S Cycle Big Bore Kt Hc136/132 4.320"Bore Blkgrnt W/Hlfins M8 '17-25 910-1010A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonFLHRXS Road King...MSRP: $1,651.24$1,435.86 -
S&S Cycle Big Bore Kit Hc 136/132 4.320"Bore Blk Nohl Fins M8 2017-25 910-1009A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonFLHRXS Road King...MSRP: $1,651.24$1,435.86 -
S&S Cycle Big Bore Kit Hc 136/132 4.320"Bore Blk W/Hl Fins M8 2017-25 910-1008A
S&S CYCLE
MSRP: $1,651.24$1,435.86Features132" high compression kit will work on 114"/117" motors with 4-1/2" stroke flywheels onlyTo achieve 136" big bore, S&S flywheel with 4-5/8" stroke is required (sold seperately). Position Notes 2017-2025Harley-DavidsonFLHRXS Road King...MSRP: $1,651.24$1,435.86 -
S&S Cycle Powerpak Watercool 4.25"Bore4.375"Stroke M8 Blk W/Highlite 310-1051C
S&S CYCLE
MSRP: $3,357.82$2,919.84FeaturesBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springsPrecision machined from billet aluminumPassage plugs removable for...MSRP: $3,357.82$2,919.84 -
S&S Cycle Powerpak Watercool 4.25"Bore4.375"Stroke M8 Blk W/Highlite 310-1050C
S&S CYCLE
MSRP: $3,169.21$2,755.83FeaturesBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springsPrecision machined from billet aluminumPassage plugs removable for...MSRP: $3,169.21$2,755.83 -
S&S Cycle Powerpak Watercool 4.25"Bore4.375"Stroke M8 Blk W/Highlite 310-1054C
S&S CYCLE
MSRP: $3,169.21$2,755.83FeaturesBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springsPrecision machined from billet aluminumPassage plugs removable for...MSRP: $3,169.21$2,755.83 -
S&S Cycle Powerpak Watercool 4.25"Bore 4.5"Stroke M8 Blk W/Highlites 310-1102C
S&S CYCLE
MSRP: $3,357.82$2,919.84Features114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsIncludes oil pump/cam plate, pushrods with chrome covers, tappets, tappet cuffs, S&S 550 camshaft, and valve springs Position ...MSRP: $3,357.82$2,919.84 -
S&S Cycle Powerpak Watercool 4.25"Bore 4.5"Stroke M8 Blkgranite W/Hl 310-1108C
S&S CYCLE
MSRP: $3,325.85$2,892.04Features114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsIncludes oil pump/cam plate, pushrods with chrome covers, tappets, tappet cuffs, S&S 550 camshaft, and valve springs Position ...MSRP: $3,325.85$2,892.04