Engine

-€544.39

S&S CYCLE 96" Sidewinder® Engine Performance Kit — 3.625" bore, 4.625"...

Complete S&S Sidewinder® performance kit with flywheel assembly, stroker big bore cylinder, pistons, rings and gaskets. Made in USA. Some installation parts and machine work required.

€2,117.08 €2,661.47

-€367.44

S&S CYCLE Hooligan Engine Performance Kit — 1200 cc, Wrinkle Black

Bolt-on performance kit with bolt-in cams and premium tappets. Easy installation with no machining or rebalancing. Uses stock heads, pushrods, and fuel system.

€1,429.30 €1,796.74

110" Power Package Performance Kit — 4" bore, 10.5:1 compression, Black

-€717.12

S&S CYCLE 110" Power Package Performance Kit — 4" bore, 10.5:1...

Complete S&S 110" big-bore performance kit with 4" cylinders, 10.5:1 pistons and 585 cams; fits stock heads.

€2,788.77 €3,505.89

124" Power Package for Water Cooled 107" M8 — 4.250" bore, water-cooled, Wrinkle Black

On sale!
-€626.49

S&S CYCLE 124" Power Package for Water Cooled 107" M8 — 4.250" bore,...

Complete bolt-on big bore kit with forged pistons, billet-machined components, S&S cam and tappets. No case machining required.

€2,436.38 €3,062.87

124" Power Package for Oil Cooled 107" M8 — 4.250" bore, 11:1 compression

On sale!
-€639.83

S&S CYCLE 124" Power Package for Oil Cooled 107" M8 — 4.250" bore, 11:1...

Bolt-on big bore power package with forged pistons, billet construction, improved oil management, and upgraded valvetrain components.

€2,488.20 €3,128.03

128" Power Package for 114"/117" Oil Cooled M8 — 128", 4.250" bore, 4.500" stroke, 11.1:1, Wrinkle Black

-€734.60

S&S CYCLE 128" Power Package for 114"/117" Oil Cooled M8 — 128", 4.250"...

Complete bolt-on big-bore kit that raises displacement without case machining. Includes cylinders, forged pistons, upgraded oil pump/cam plate, valvetrain hardware, and all gaskets and bearings for installation.

€2,856.80 €3,591.40

128" Power Package Engine Performance Kit — 4.250" bore, 4.500" stroke, 11.1:1

On sale!
-€639.83

S&S CYCLE 128" Power Package Engine Performance Kit — 4.250" bore,...

Bolt-on big-bore performance kit that increases displacement with forged pistons, S&S 550 cams, enhanced oiling and all gaskets and hardware for installation. Made in the U.S.A.

€2,488.20 €3,128.03

128" Power Package Engine Performance Kit — 128", 4.250" bore, 4.500" stroke, 11.1:1, Black Granite

-€679.94

S&S CYCLE 128" Power Package Engine Performance Kit — 128", 4.250" bore,...

Bolt-on big-bore kit for M-Eight engines. Includes forged pistons, S&S oil pump/cam plate, cams, springs, pushrods, premium tappets, gaskets, bearings, and hardware. Made in the U.S.A.

€2,644.23 €3,324.17

$128\" Power Package for 114\"/117\" Oil Cooled M8 —4.25\" bore, 4.5\" stroke$

-€693.06

S&S CYCLE 128\" Power Package for 114\"/117\" Oil Cooled M8 —4.25\"...

Complete bolt‑on big‑bore kit to increase 114\"/117\" M‑Eight engines to 128\"; includes cylinders, forged pistons, S&S 550 cam, oil pump/cam plate and all gaskets and hardware.

€2,695.25 €3,388.31

Tornado Turbo Performance Kit — Polished

-€1,595.33

TRASK Tornado Turbo Performance Kit — Polished

Bolt-on power: +40–50% on stock 107", 114" and 117" M‑Eight motors.
Compressor and turbine housing with Garrett internals; plenum with integrated blow-off valve.
Includes injectors, spark plugs, boost gauge with mount, oil feed/drain lines, custom cam cover, tune files, hardware and gaskets.
Requires Thundermax ECM (sold separately). Does not fit Twin Cooled or non-removable fairing lowers. Offroad use only.
Made in the USA.

€6,204.07 €7,799.40

132" Power Package Engine Performance Kit — 4.320" bore, 4.500" stroke, water-cooled

-€624.42

S&S CYCLE 132" Power Package Engine Performance Kit — 4.320" bore,...

Complete big-bore kit to convert 114"/117" water-cooled M8 engines to 132" with serviceable components and retained engine height and serials.

€2,428.27 €3,052.69

129" Power Package Engine Performance Kit — Bore 4.320", Stroke 4.375", Black

-€752.97

S&S CYCLE 129" Power Package Engine Performance Kit — Bore 4.320",...

Converts a 107" oil‑cooled M8 to 129" without case machining. Big-bore cylinders, matched cam and pump, MLS head gaskets. Made in USA.

€2,928.22 €3,681.19

$132\" Power Package Engine Performance Kit — 132\", 4.320\" bore, 4.500\" stroke$

-€778.33

S&S CYCLE 132\" Power Package Engine Performance Kit — 132\", 4.320\"...

Converts 114" or 117" water-cooled M8 to 132" displacement; includes big-bore cylinders, 550 performance cam, MLS head gaskets, and cam cover badge. Retains stock engine height and serial numbers.

€3,026.84 €3,805.17

129" Power Package Engine Performance Kit — 129", bore 4.320", stroke 4.375", black

-€661.57

S&S CYCLE 129" Power Package Engine Performance Kit — 129", bore 4.320",...

Converts a 107" oil-cooled M8 to 129" with big-bore cylinders, matched cam and oil pump, MLS head gaskets; works with the stock crankcase.

€2,572.82 €3,234.39

132" Power Package Engine Performance Kit — 4.320" bore, 4.500" stroke, Black

-€661.57

S&S CYCLE 132" Power Package Engine Performance Kit — 4.320" bore,...

Complete S&S 132" Power Package kit to upgrade compatible 114" or 117" oil-cooled M8 engines; retains serial numbers, works with stock crankcase, and includes cam cover badge.

€2,572.82 €3,234.39

132" Power Package Engine Performance Kit — Bore 4.320", Stroke 4.500", Black Granite

-€778.33

S&S CYCLE 132" Power Package Engine Performance Kit — Bore 4.320",...

Complete kit to convert 114" or 117" oil-cooled M8 engines to 132" displacement while retaining stock height and serial numbers. Includes adjustable pressure relief valve, S&S valve springs, big-bore cylinders, MLS head gaskets and a performance-matched 550 cam.

€3,026.84 €3,805.17

129" Power Package Engine Performance Kit — 129", 4.320" bore, 4.375" stroke, Black

-€778.33

S&S CYCLE 129" Power Package Engine Performance Kit — 129", 4.320" bore,...

Complete kit to convert a 107" oil-cooled M8 into a 129" performance engine; includes matched cam, cam plate, oil pump, MLS head gaskets and serviceable passage plugs.

€3,026.84 €3,805.17

129" Power Package Engine Performance Kit — 4.320" bore, 4.375" stroke, Black

-€661.57

S&S CYCLE 129" Power Package Engine Performance Kit — 4.320" bore,...

Complete Power Package kit converts the 107" oil-cooled M8 to a big-bore setup with matched cam, oil pump, MLS gaskets and serviceable components.

€2,572.82 €3,234.39

132" High Compression / 136" Big Bore Kit — 132", 136", stroke 4-1/2", 4-5/8"

-€346.84

S&S CYCLE 132" High Compression / 136" Big Bore Kit — 132", 136", stroke...

132" high-compression kit fits 114"/117" motors with 4-1/2" stroke flywheels; 136" requires a 4-5/8" S&S flywheel (sold separately).

€1,349.11 €1,695.95

-€346.84

S&S CYCLE Big Bore Kit — 132", 136", 4-1/2" stroke, 4-5/8" stroke

132" high-compression kit fits 114"/117" motors with a 4-1/2" stroke flywheel only. 136" big-bore requires an S&S 4-5/8" stroke flywheel (sold separately).

€1,349.11 €1,695.95

132" High Compression / 136" Big Bore Kit — 4-1/2" & 4-5/8" stroke

-€346.84

S&S CYCLE 132" High Compression / 136" Big Bore Kit — 4-1/2" & 4-5/8"...

High-compression big bore kit increases compression and torque; requires a specific longer-stroke flywheel to reach the larger big bore (sold separately).

€1,349.11 €1,695.95

132" High Compression / 136" Big Bore Kit — 132 cu in, 136 cu in, 4.5 in stroke, 4.625 in stroke, Black

-€346.84

S&S CYCLE 132" High Compression / 136" Big Bore Kit — 132 cu in, 136 cu...

High-compression kit enabling 132" or 136" big bore capability; requires specific stroke flywheels. S&S flywheel needed for 136" (sold separately).

€1,349.11 €1,695.95

132" High Compression / 136" Big Bore Kit — 4-1/2" stroke, 4-5/8" stroke

-€346.84

S&S CYCLE 132" High Compression / 136" Big Bore Kit — 4-1/2" stroke,...

Fits 114"/117" motors with 4-1/2" stroke flywheels; 136" build requires S&S 4-5/8" flywheel (sold separately).

€1,349.11 €1,695.95

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