Malossi 177cc Cylinder Kit for Vespa P125/150 / Genuine Stella 2T
ITEM# TT-27271
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Description
Malossi 177cc Cylinder Kit for Vespa P125/150 / Genuine Stella 2T. This kit swaps out the cylinder and piston. You might use it to bring back lost compression or to enlarge displacement for extra power. It is designed for the Genuine Stella 2T and Genuine Stella models.
Larger bore kits often call for re-jetting and occasionally a matching head, so review what comes in the box. Verify the bore size and confirm the kit suits your engine code.
About this kit
This Malossi 177cc cylinder kit is made for vintage Vespa P125/150-series and Genuine Stella 2T scooters. The cast iron barrel uses a port layout tuned for higher RPM, which adds strong top-end output while keeping low and mid-range response usable. The kit includes a cast iron cylinder, aluminum cylinder head, aluminum piston, piston rings, wrist pin, circlips, head gasket, and carb jetting. Malossi manufactures it in Italy.
Highlights:
- Cast iron barrel with a port layout optimized for high RPM
- Aluminum head with a hemispherical combustion chamber and wave-style cooling fins
- Flat-top aluminum piston with 2 rings and rectangular transfer port windows
- Strong top-end performance with little loss in low and mid-range response
- Suggested add-ons for best results: a performance exhaust and a 26/26 carb
- Italian-made by Malossi, a brand producing since 1930
What's in the box:
- Cast iron cylinder barrel
- Aluminum cylinder head
- Aluminum piston with wrist pin and circlips
- 2 piston rings
- Head gasket
- Carb jets: 115 main jet, BE4 atomizer, 52/140 idle jet
Spec sheet:
- Brand: Malossi
- Displacement: 177cc
- Barrel material: Cast iron
- Head material: Aluminum alloy
- Made in Italy
Works with:
- Vespa: Sprint
- Vespa: GTR 125
- Vespa: TS 125
- Vespa: P125E
- Vespa: PX125E
- Vespa: P150X
- Vespa: PX150E
- Genuine: Stella 2T
Fitting note: On certain setups, the fins at the bottom of the cylinder may touch the flywheel. When that happens, trim the affected fins to create clearance. Doing so does not reduce cooling or shorten cylinder life. Use a grinding bit and work carefully. The owner is responsible for any damage caused by this modification.
For off-road use only. Not designed for public roads or land. Not legal for use in California on pollution-controlled vehicles, so check local regulations before fitting. Performance parts are not covered by warranty.
Key specs
- Fits: Vespa Sprint, GTR 125, TS 125, P125E, PX125E, P150X, PX150E and Stella 2T
- Part type: Big Bore & Cylinder Kits
- Engine size: 177cc
- Condition: New
Fitment list
Fits:
- Vespa Sprint
- Vespa GTR 125
- Vespa TS 125
- Vespa P125E
- Vespa PX125E
- Vespa P150X
- Vespa PX150E
- Stella 2T
Browse more: Genuine Stella Parts · Scooter Big Bore & Cylinder Kits · Genuine Scooter Parts · Scooter Parts
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