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Softail – Engine & Gaskets

Engine components, cams, pistons, belts, clutch kits and drivetrain parts for Harley-Davidson Softail models.

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S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore #310-1051C

Only 2 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins Sold out
£3,600.99 - £3,600.99
£3,600.99
£3,600.99 - £3,600.99
£3,600.99

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins #310-1106C

Out of stock

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,600.99 - £3,600.99
£3,600.99
£3,600.99 - £3,600.99
£3,600.99
Sold out
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore #310-1050C

Only 4 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins
£3,566.66 - £3,566.66
£3,566.66
£3,566.66 - £3,566.66
£3,566.66

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins #310-1108C

Only 2 left!

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,566.66 - £3,566.66
£3,566.66
£3,566.66 - £3,566.66
£3,566.66
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore
Sold out
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore #310-1054C

Out of stock

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27
Sold out
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins Big Bore
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins Big Bore #310-1053C

Only 2 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins #310-1101C

Only 4 left!

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins #310-1102C

Only 1 left!

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins Big Bore
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins Big Bore #310-1052C

in stock

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins Big Bore #310-1058C

Only 5 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins Big Bore
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins Big Bore #310-1059C

Only 2 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,639.48 - £3,639.48
£3,639.48
£3,639.48 - £3,639.48
£3,639.48
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins Big Bore
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins Big Bore #310-1057C

Only 4 left!

Description124" Power PackageBolt-on kitWith updated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushro...

View full details
£3,428.27 - £3,428.27
£3,428.27
£3,428.27 - £3,428.27
£3,428.27
S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Highlighted Fins Wrinkle Black 550C
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09

S&S Cycle 124" Power Package for 2017-2025 Harley-Davidson Performance Kit Highlighted Fins Wrinkle Black 550C #310-1056C

in stock

Description124" Power PackageBolt-on kitUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil pump/cam plate, pushrods, t...

View full details
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins #310-1103C

Only 2 left!

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09
S&S Cycle V124 Long Block Engine for 1984-1999 Harley-Davidson Black
£7,182.72 - £7,182.72
£7,182.72
£7,182.72 - £7,182.72
£7,182.72

S&S Cycle V124 Long Block Engine for 1984-1999 Harley-Davidson Black #310-1158

Only 1 left!

DescriptionV124 Long Block EngineFor '84-'99 Evolution Big Twin or '70-'99 custom chasis with alternator-style primarySpecially machined cylinder h...

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£7,182.72 - £7,182.72
£7,182.72
£7,182.72 - £7,182.72
£7,182.72
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins
Sold out
£3,600.99 - £3,600.99
£3,600.99
£3,600.99 - £3,600.99
£3,600.99

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Highlighted Fins #310-1104C

Out of stock

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,600.99 - £3,600.99
£3,600.99
£3,600.99 - £3,600.99
£3,600.99
Sold out
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Non-Highlighted Fins #310-1105C

in stock

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09
S&S Cycle MK136 Engine with 550G Cam for 2018-2024 Harley-Davidson
£9,418.13 - £9,418.13
£9,418.13
£9,418.13 - £9,418.13
£9,418.13

S&S Cycle MK136 Engine with 550G Cam for 2018-2024 Harley-Davidson #310-1295

in stock

DescriptionMK136 Engine with 550G CamBlack Edition engine550G camshaft for oil cooledMade in the USAClosed course competition use only.Fitment 2018...

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£9,418.13 - £9,418.13
£9,418.13
£9,418.13 - £9,418.13
£9,418.13
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£66.53 - £66.53
£66.53
£66.53 - £66.53
£66.53

S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings - 94-1290X

in stock

DescriptionReplacement Ring Set for S&S PistonsReplacement ring sets for S&S pistons onlyRings come as sets for two pistonsMade in the USAS...

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£66.53 - £66.53
£66.53
£66.53 - £66.53
£66.53
S&S Cycle MK136 Black Edition Engine with 550G Cam for 2017-2023 Harley-Davidson Powder Coat Race
£9,044.30 - £9,044.30
£9,044.30
£9,044.30 - £9,044.30
£9,044.30

S&S Cycle MK136 Black Edition Engine with 550G Cam for 2017-2023 Harley-Davidson Powder Coat Race #310-1289

in stock

DescriptionMK136 Black Edition Engine with 550G CamCylinder Heads:High-flow cylinder heads with premium seats, guides, valves, springs, and seals+1...

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£9,044.30 - £9,044.30
£9,044.30
£9,044.30 - £9,044.30
£9,044.30
S&S Cycle MK136 Engine with 475G Cam for 2018-2024 Harley-Davidson
£9,418.13 - £9,418.13
£9,418.13
£9,418.13 - £9,418.13
£9,418.13

S&S Cycle MK136 Engine with 475G Cam for 2018-2024 Harley-Davidson #310-1296

in stock

DescriptionMK136 Engine with 475G CamBlack Edition engine with 475G camshaftMade in the USAFor oil-cooled.Closed course competition only.Fitment 20...

View full details
£9,418.13 - £9,418.13
£9,418.13
£9,418.13 - £9,418.13
£9,418.13
S&S Cycle T124 High Compression Long Block Engine for 2007-2016 Harley-Davidson T-Series Stone Grey
Sold out
£7,438.87 - £7,438.87
£7,438.87
£7,438.87 - £7,438.87
£7,438.87

S&S Cycle T124 High Compression Long Block Engine for 2007-2016 Harley-Davidson T-Series Stone Grey #310-0511A

Out of stock

DescriptionT124 High Compression Long Block EngineHigh compressionOil line installation kit requiredNo fuel system or ignition systems includedSpec...

View full details
£7,438.87 - £7,438.87
£7,438.87
£7,438.87 - £7,438.87
£7,438.87
Sold out
S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins
Sold out
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09

S&S Cycle 128" Power Package for 2017-2025 Harley-Davidson Performance Kit Black Granite Highlighted Fins #310-1109C

Out of stock

Description128" Power Package114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kitBolt-in kit, case maching not requiredForged pistonsI...

View full details
£3,398.09 - £3,398.09
£3,398.09
£3,398.09 - £3,398.09
£3,398.09
Sold out
S&S Cycle Big Bore Kit for 2019-2021, 2023 ROYAL ENFIELD
£958.13 - £958.13
£958.13
£958.13 - £958.13
£958.13

S&S Cycle Big Bore Kit for 2019-2021, 2023 ROYAL ENFIELD #920-0144

in stock

DescriptionBig Bore KitIncreases bore from stockIncrease compression ratio from 9.5:1 to 11.0:1Kit includes cylinder sleeves, pistons and head gask...

View full details
£958.13 - £958.13
£958.13
£958.13 - £958.13
£958.13

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