Engine

-€3.54

DRAG SPECIALTIES Bolt-In Valve Stem — 6.1 mm hole, Chrome

Secure valve stem designed for reliable sealing and straightforward installation.

€7.59 €11.13

-€1,212.13

S&S CYCLE Top End Kit — 74 cu in, 3-7/16" bore, 8.0:1 compression

Complete S&S top-end kit with heads, pre-fit forged pistons, and all necessary hardware for quick installation.

€3,425.64 €4,637.77

Top End Kit — 3.500" bore, 4.25" stroke, 8.0:1 compression, 80 cu in

-€723.44

S&S CYCLE Top End Kit — 3.500" bore, 4.25" stroke, 8.0:1 compression, 80...

Complete top-end assembly with heads, cylinders, pistons, and gaskets.
Pistons pre-fit to cylinders for minimal downtime.
Includes all hardware, clamps, and seals; made in the USA.

€2,813.38 €3,536.82

-€419.97

S&S CYCLE 91 cc Super Stock® Cylinder Heads — Powder-Coated Wrinkle Black

Designed for S&S® T-Series T2 long block engines for Harley Davidson® big twins
2.000" intake and 1.605" exhaust valves with S&S® ports
S&S® high performance valve springs support cam lift up to .650"
Compatible with stock rocker boxes, exhaust, and intake manifolds
Requires S&S valve cover gasket kit; not machined for compression releases

€1,633.25 €2,053.22

$4-1/8\" Bore Cylinder — 4.125\" bore, 4.625\" stroke, Black, 124\" Hot Set Up Kits ('99-'17 Twin Cams)$

-€213.62

S&S CYCLE 4-1/8\" Bore Cylinder — 4.125\" bore, 4.625\" stroke, Black,...

Designed for 124" Hot Set Up Kits and '99-'17 Twin Cams; requires crankcase machining.

€830.76 €1,044.38

-€111.66

S&S CYCLE Piston Kit for Super Stock® Heads — 80 cu in, Bore 3.500 in

For S&S® Super Stock® Heads only. Kit includes pistons, rings, wrist pins, and circlips. Made in the USA.

€434.24 €545.90

Piston Kit for Super Stock® Heads — 80", 3.500" bore, 4.250" stroke

-€114.09

S&S CYCLE Piston Kit for Super Stock® Heads — 80", 3.500" bore, 4.250"...

Complete piston kit for S&S® Super Stock® Heads; includes pistons, rings, wrist pins, and circlips. Deck height 1.3750" for 80" engine. Made in the USA.

€443.67 €557.76

-€99.53

S&S CYCLE Piston Kit 80" Stock Big Twin — 80", 3.530", 4-1/4"

Forged piston kit for stock Big Twin motors; includes pistons, rings, wristpins, and clips. Made in the U.S.A.

€387.03 €486.56

-€99.53

S&S CYCLE Forged 3-5/8" Bore Piston Kit — 3.625" bore, standard

Forged pistons for superior strength and durability.

Modern alloys and skirt profiles reduce noise and extend engine life.

Includes pistons, rings, wristpins, and clips.

€387.03 €486.56

-€91.87

S&S CYCLE Forged 3-5/8" Bore Piston Kit — +0.010" oversize

Forged pistons for superior strength; includes pistons, rings, wristpins and clips.

€357.27 €449.14

-€97.10

S&S CYCLE Forged 3-5/8" Bore Piston Kit — 3.645", +0.020"

Forged pistons for superior strength and long engine life; kit includes pistons, rings, wristpins, and clips.

€377.58 €474.68

-€99.53

S&S CYCLE Forged 3-5/8" Bore Piston Kit — Bore 3.655", Oversize +0.030"

Forged piston kit with modern alloys; includes pistons, rings, wristpins, and clips.

€387.03 €486.56

-€148.67

S&S CYCLE Piston Kit for Hot Set Up Kit® — Bore 4.125", 111/117/124 cu in

Complete piston kit with rings, wristpins, and clips. Made in the USA. Fits up to 4-5/8" stroke; deck height 1.050".

€585.33 €734.00

Piston Kit for Hot Set Up Kit® — Bore 4.125", Oversize +0.010", Deck height 1.050", Fits up to 4-5/8" stroke

-€143.22

S&S CYCLE Piston Kit for Hot Set Up Kit® — Bore 4.125", Oversize...

Complete set with forged pistons, rings, wristpins, and clips; made in the USA. Deck height 1.050", fits up to 4-5/8" stroke.

€556.97 €700.19

Piston Kit for Hot Set Up Kit® — 4.125" bore, +0.020" oversize, deck 1.050", fits 4-5/8" stroke

-€143.22

S&S CYCLE Piston Kit for Hot Set Up Kit® — 4.125" bore, +0.020"...

Complete piston kit with forged pistons, rings, wristpins, and clips. Made in the USA. Deck height 1.050"; fits up to 4-5/8" stroke.

€556.97 €700.19

-€124.61

S&S CYCLE High Compression Piston Kit — 4.010" bore, 110 cu in, 10.6:1

Performance upgrade with precise deck height and wristpin fit; not compatible with twin cooled or '17 touring models.

€484.59 €609.20

-€121.37

S&S CYCLE Big Bore Forged Piston Kit — Bore 3.937", Stroke 4", 98 cu in

Forged pistons designed for big bore engine upgrades; compatible with stock rods and suitable for cylinder boring.

€472.00 €593.37

Big Bore Forged Piston Kit — Bore 3.937", Stroke 4-3/8", Compression 10.4:1, Displacement 107"

-€121.37

S&S CYCLE Big Bore Forged Piston Kit — Bore 3.937", Stroke 4-3/8",...

Durable forged pistons for big bore builds. Compatible with stock rods with tapered wristpin ends. Cylinders may be bored to fit; machine to nominal diameter for correct clearance.

€472.00 €593.37

Piston Kit for S&S Motors — 3.875" bore, +0.005" oversize, 103 cu in

-€111.18

S&S CYCLE Piston Kit for S&S Motors — 3.875" bore, +0.005" oversize, 103...

Complete piston kit with pistons, rings, wrist pins and clips for S&S Motors. Made in the U.S.A.

€432.34 €543.52

$Piston Kit for S&S Motors — Bore 3.500\", Oversize +0.020\", Displacement 80\"$

-€34.97

S&S CYCLE Piston Kit for S&S Motors — Bore 3.500\", Oversize +0.020\",...

Complete piston kit with rings, wrist pins and clips for full motor replacement.

Made in the U.S.A.

€135.99 €170.96

-€2.41

S&S CYCLE Wrist Pin Circlips — 0.927 in, 4-pack

Precision circlips for 0.927 in wristpins. Made in the U.S.A.

€9.39 €11.80

Replacement Piston — 3.755" bore, +0.005" oversize, 4-3/8" stroke, kit

-€25.84

DRAG SPECIALTIES Replacement Piston — 3.755" bore, +0.005" oversize, 4-3/8"...

OEM-quality replacement piston kit with two pistons, wrist pins and clips; accepts OEM or Hastings rings (sold separately).

€73.06 €98.90

Replacement Piston — 3.875" bore, +0.010" oversize, 4-3/8" stroke, kit

-€28.20
Out of Stock

DRAG SPECIALTIES Replacement Piston — 3.875" bore, +0.010" oversize, 4-3/8"...

OEM-quality cast aluminum replacement pistons; kits include two pistons, wrist pins and clips.

€79.68 €107.88

-€30.11

DRAG SPECIALTIES Piston — 3.750" bore, 9.0:1 compression, kit

OEM-quality replacement pistons for Twin Cam motors; includes two pistons, wrist pins and clips; accepts OEM or Hastings rings.

€85.13 €115.24

$Piston — Bore 3.750\", Oversize +0.005\", 9.0:1$

-€30.11

DRAG SPECIALTIES Piston — Bore 3.750\", Oversize +0.005\", 9.0:1

OEM-quality cast aluminum alloy piston kit for Twin Cam motors. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.

€85.13 €115.24

-€30.11

DRAG SPECIALTIES Piston — 3.750" bore, +0.010" oversize, 9.0:1 compression

OEM-quality cast aluminum piston kit for Twin Cam motors; includes two pistons, wrist pins and clips.

€85.13 €115.24

$Big Bore Piston — 3.875\" , 10.25:1$

-€32.37

DRAG SPECIALTIES Big Bore Piston — 3.875\" , 10.25:1

Direct-fit Big Bore piston for Twin Cam engines, built for durability and consistent performance.

€91.45 €123.82

-€33.18

DRAG SPECIALTIES Big Bore Piston — 3.875" bore, +0.010" oversize

Big Bore piston for Twin Cam engines, ideal for performance rebuilds and restorations.

€93.74 €126.92

Big Bore Piston — 3.875" bore, +0.020" oversize, 10.25:1 compression

-€33.18
Out of Stock

DRAG SPECIALTIES Big Bore Piston — 3.875" bore, +0.020" oversize, 10.25:1...

Big Bore Piston designed for Twin Cam engines; precision replacement for performance upgrades and reliable operation.

€93.74 €126.92

$Piston Kit — Bore 3.937\", 107 cu in, 10.0:1$

-€34.31

DRAG SPECIALTIES Piston Kit — Bore 3.937\", 107 cu in, 10.0:1

Coated aluminum alloy pistons sold as a kit with wrist pins and clips; accepts OEM or Hastings rings (sold separately).

€96.97 €131.28

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