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Engine & Performance

Choose from Engine & Performance products for Harley-Davidson, American V-twin and compatible motorcycle applications. Across the range you will find products for engine components. Compatibility varies, so match the stated model, year and technical details before ordering.

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S&S Cycle Big Bore Forged Piston Kit
£535.79 - £535.79
£535.79
£535.79 - £535.79
£535.79

S&S Cycle Big Bore Forged Piston Kit #920-0101

in stock

DescriptionBig Bore Forged Piston KitPistons are compatible with stock rods with tapered wristpin endsStock cylinders may be bored to accommodate l...

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£535.79 - £535.79
£535.79
£535.79 - £535.79
£535.79
S&S Cycle High Compression Piston Kit
£532.23 - £532.23
£532.23
£532.23 - £532.23
£532.23

S&S Cycle High Compression Piston Kit #920-0115

in stock

DescriptionHigh Compression Piston KitDeck height is 1.0985"Wristpin diameter is .927" Piston features a 12.5cc raised dome to achieve a compressio...

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£532.23 - £532.23
£532.23
£532.23 - £532.23
£532.23
S&S Cycle High Compression Piston Kit
£532.23 - £532.23
£532.23
£532.23 - £532.23
£532.23

S&S Cycle High Compression Piston Kit #920-0114

in stock

DescriptionHigh Compression Piston KitDeck height is 1.0985"Wristpin diameter is .927" Piston features a 12.5cc raised dome to achieve a compressio...

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£532.23 - £532.23
£532.23
£532.23 - £532.23
£532.23
S&S Cycle Piston Kit for Hot Set Up Kit®
£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94

S&S Cycle Piston Kit for Hot Set Up Kit® #106-3964A

in stock

DescriptionPiston Kit for Hot Set Up Kit®Piston kit includes set of forged pistons, rings, wristpins, and clips for a complete motorMade in the USA...

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£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94
S&S Cycle Piston Kit for Hot Set Up Kit®
£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94

S&S Cycle Piston Kit for Hot Set Up Kit® #106-3872A

in stock

DescriptionPiston Kit for Hot Set Up Kit®Piston kit includes set of forged pistons, rings, wristpins, and clips for a complete motorMade in the USA...

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£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94
S&S Cycle Piston Kit for Hot Set Up Kit®
£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94

S&S Cycle Piston Kit for Hot Set Up Kit® #106-3491A

in stock

DescriptionPiston Kit for Hot Set Up Kit®Piston kit includes set of forged pistons, rings, wristpins, and clips for a complete motorMade in the USA...

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£642.94 - £642.94
£642.94
£642.94 - £642.94
£642.94
S&S Cycle Piston Kit for Super Stock® Heads Forged Replacement
£499.37 - £499.37
£499.37
£499.37 - £499.37
£499.37

S&S Cycle Piston Kit for Super Stock® Heads Forged Replacement #92-2028

Only 4 left!

DescriptionPiston Kit for Super Stock® HeadsFor S&S® Super Stock® Heads onlyKit includes pistons, rings, wrist pins, and circlipsDeck height is...

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£499.37 - £499.37
£499.37
£499.37 - £499.37
£499.37
S&S Cycle Piston Kit for Super Stock® Heads Forged Replacement
£504.57 - £504.57
£504.57
£504.57 - £504.57
£504.57

S&S Cycle Piston Kit for Super Stock® Heads Forged Replacement #92-2026

in stock

DescriptionPiston Kit for Super Stock® HeadsFor S&S® Super Stock® Heads onlyKit includes pistons, rings, wrist pins, and circlipsDeck height is...

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£504.57 - £504.57
£504.57
£504.57 - £504.57
£504.57
S&S Cycle Hooligan Engine Performance Kit Hooligan™ Wrinkle Black Big Bore
£1,689.75 - £1,689.75
£1,689.75
£1,689.75 - £1,689.75
£1,689.75

S&S Cycle Hooligan Engine Performance Kit Hooligan™ Wrinkle Black Big Bore #910-0699

in stock

DescriptionHooligan Engine Performance KitBolt on big bore kits mean easy installation with no machining and no rebalancingS&S bolt-in cams and...

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£1,689.75 - £1,689.75
£1,689.75
£1,689.75 - £1,689.75
£1,689.75
S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit Black
£4,682.02 - £4,682.02
£4,682.02
£4,682.02 - £4,682.02
£4,682.02

S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit Black #91-9134

Only 1 left!

DescriptionSidewinder® Big Bore Stroker Engine Performance KitSidewinder Big Bore Stroker KitContains nearly everything needed to take a stock 74" ...

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£4,682.02 - £4,682.02
£4,682.02
£4,682.02 - £4,682.02
£4,682.02
S&S Cycle 106" Hot Set Up® Engine Performance Kit Wrinkle Black Big Bore
Sold out
£2,230.70 - £2,230.70
£2,230.70
£2,230.70 - £2,230.70
£2,230.70

S&S Cycle 106" Hot Set Up® Engine Performance Kit Wrinkle Black Big Bore #900-0354

Out of stock

Description106" Hot Set Up® Engine Performance KitIncreased fin area for better heat dissipationIncrease bore size from 3.750" to 3.927"4.375" stro...

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£2,230.70 - £2,230.70
£2,230.70
£2,230.70 - £2,230.70
£2,230.70
Sold out
S&S Cycle 91 cc Super Stock® Cylinder Heads Cylinder Head Kit Powder-Coated Wrinkle Black Aluminium Pair
£1,868.61 - £1,868.61
£1,868.61
£1,868.61 - £1,868.61
£1,868.61

S&S Cycle 91 cc Super Stock® Cylinder Heads Cylinder Head Kit Powder-Coated Wrinkle Black Aluminium Pair #900-0349

in stock

Description91 cc Super Stock® Cylinder HeadsDesigned specifically for S&S® T-Series T2 long block engines for Harley Davidson® big twins and en...

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£1,868.61 - £1,868.61
£1,868.61
£1,868.61 - £1,868.61
£1,868.61
S&S Cycle 96" Sidewinder® Engine Performance Kit Wrinkle Black Big Bore
£2,531.01 - £2,531.01
£2,531.01
£2,531.01 - £2,531.01
£2,531.01

S&S Cycle 96" Sidewinder® Engine Performance Kit Wrinkle Black Big Bore #91-7661

in stock

Description96" Sidewinder® Engine Performance KitKit includes standard flywheel assembly, 3.625" Sidewinder® stroker big bore cylinder, 9.75:1 comp...

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£2,531.01 - £2,531.01
£2,531.01
£2,531.01 - £2,531.01
£2,531.01
S&S Cycle 124" Hot Set Up® Engine Performance Kit Powder Coated Wrinkle Black Big Bore
£7,392.44 - £7,392.44
£7,392.44
£7,392.44 - £7,392.44
£7,392.44

S&S Cycle 124" Hot Set Up® Engine Performance Kit Powder Coated Wrinkle Black Big Bore #900-0565

Only 4 left!

Description124" Hot Set Up® Engine Performance KitFor balanced Twin Cam modelsConverts a stock engine to 124" using the stock crankcasesIncludes S&...

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£7,392.44 - £7,392.44
£7,392.44
£7,392.44 - £7,392.44
£7,392.44
S&S Cycle 124" Hot Set Up® Engine Performance Kit Powder Coated Wrinkle Black Big Bore
£7,392.44 - £7,392.44
£7,392.44
£7,392.44 - £7,392.44
£7,392.44

S&S Cycle 124" Hot Set Up® Engine Performance Kit Powder Coated Wrinkle Black Big Bore #900-0568

Only 3 left!

Description124" Hot Set Up® Engine Performance KitFor non-balanced Twin Cam modelsConverts a stock engine to 124" using the stock crankcasesInclude...

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£7,392.44 - £7,392.44
£7,392.44
£7,392.44 - £7,392.44
£7,392.44
S&S Cycle 1200cc Conversion Kit for XL883 Powder-Coated Wrinkle Black Big Bore Aluminium Cast
£925.97 - £925.97
£925.97
£925.97 - £925.97
£925.97

S&S Cycle 1200cc Conversion Kit for XL883 Powder-Coated Wrinkle Black Big Bore Aluminium Cast #910-0687

in stock

Description1200cc Conversion Kit for XL883Saves time because pistons already fit to the cylinders - ready to assemble out of the boxCylinders are c...

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£925.97 - £925.97
£925.97
£925.97 - £925.97
£925.97
S&S Cycle 1200cc Conversion Kit for XL883 Powder-Coated Silver Big Bore Aluminium Cast
£925.97 - £925.97
£925.97
£925.97 - £925.97
£925.97

S&S Cycle 1200cc Conversion Kit for XL883 Powder-Coated Silver Big Bore Aluminium Cast #910-0688

in stock

Description1200cc Conversion Kit for XL883Saves time because pistons already fit to the cylinders - ready to assemble out of the boxCylinders are c...

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£925.97 - £925.97
£925.97
£925.97 - £925.97
£925.97
S&S Cycle T143 Long Block Engine T-Series Black
£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87

S&S Cycle T143 Long Block Engine T-Series Black #310-0837A

Only 4 left!

DescriptionT143 Long Block EngineS&S B3 cylinder heads CNC-machined with two-bolt exhaust flangesS&S 635 easy-start gear drive cams and 1.7...

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£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87
S&S Cycle T143 Long Block Engine T-Series Chrome Wrinkle Black
£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87

S&S Cycle T143 Long Block Engine T-Series Chrome Wrinkle Black #310-0737A

Only 1 left!

DescriptionT143 Long Block EngineS&S B3 cylinder heads CNC-machined with two-bolt exhaust flangesS&S 635 easy-start gear drive cams and 1.7...

View full details
£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87
S&S Cycle T143 Long Block Engine T-Series Chrome Wrinkle Black
£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87

S&S Cycle T143 Long Block Engine T-Series Chrome Wrinkle Black #310-0548A

Only 1 left!

DescriptionT143 Long Block EngineS&S B3 cylinder heads CNC-machined with two-bolt exhaust flangesS&S 635 easy-start gear drive cams and 1.7...

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£10,315.87 - £10,315.87
£10,315.87
£10,315.87 - £10,315.87
£10,315.87
S&S Cycle V80 Complete Assembled Engine Wrinkle Black
£6,481.75 - £6,481.75
£6,481.75
£6,481.75 - £6,481.75
£6,481.75

S&S Cycle V80 Complete Assembled Engine Wrinkle Black #310-0238

Only 3 left!

DescriptionV80 Complete Assembled EngineFits in a stock frame just like a stock engine with a little more punch with S&S Super E carburetor, S&...

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£6,481.75 - £6,481.75
£6,481.75
£6,481.75 - £6,481.75
£6,481.75
S&S Cycle V111 Long-Block Engine V-Series Black Long Block
£6,923.11 - £6,923.11
£6,923.11
£6,923.11 - £6,923.11
£6,923.11

S&S Cycle V111 Long-Block Engine V-Series Black Long Block #310-0829

Only 3 left!

DescriptionV111 Long-Block EngineFits '84-'99 Harley-Davidson® big twin chasis and custom frames designed for Evolution® big twin engines+30% incre...

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£6,923.11 - £6,923.11
£6,923.11
£6,923.11 - £6,923.11
£6,923.11
S&S Cycle SH93 Vintage-Style Engine SH-Series Black Natural
Sold out
£8,653.88 - £8,653.88
£8,653.88
£8,653.88 - £8,653.88
£8,653.88

S&S Cycle SH93 Vintage-Style Engine SH-Series Black Natural #31-9905

Out of stock

DescriptionSH93 Vintage-Style EngineFits '70-'99 custom chassis with alternator-style primaryIncludes Natural crankcase with black powder-coat cyli...

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£8,653.88 - £8,653.88
£8,653.88
£8,653.88 - £8,653.88
£8,653.88
Sold out
S&S Cycle V80 Long-Block Engine V-Series Silver Long Block
£6,029.52 - £6,029.52
£6,029.52
£6,029.52 - £6,029.52
£6,029.52

S&S Cycle V80 Long-Block Engine V-Series Silver Long Block #310-0232

in stock

DescriptionV80 Long-Block EngineStock-height basic engine is direct bolt in replacement for aging 80" H-D Evolution enginesSpecially machined cylin...

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£6,029.52 - £6,029.52
£6,029.52
£6,029.52 - £6,029.52
£6,029.52

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