CYLINDER SLEEVE 81-82 MAICO 490 86.5mm VINTCO SLM04A
Replacement cylinder sleeve for vintage Maico 490 models from 1981 to 1982. Manufactured in the USA for VintCo by Advanced Sleeve. Designed for installation by an experienced and qualified machinist. Port angles are set to reduce port-matching work. The sleeve can be bored and honed to suit the stock-size VintCo piston kit. Intended to provide OEM-equivalent or better fitment and performance. VintCo Part Number SLM04A. Item Category Cylinder Sleeve. Material Cast iron. Bore 86.5mm. Height 156.8mm. Outside diameter 94.5mm. Flange outside diameter 100.2mm. Flange height 10mm. Wall thickness 4.8mm. Intake 33.2mm. Exhaust port location 45.9mm.
- SKU
- VIN-SLM04A
- Brand
- Vintco
- Availability
- In Stock (2)
FULL DESCRIPTION
VintCo Cylinder Sleeve for Vintage Maico 490
This VintCo cylinder sleeve is a high-quality replacement part designed for vintage Maico 490 models from 1981 to 1982. It serves as an excellent alternative when a complete cylinder replacement is difficult to source. Manufactured in the USA by Advanced Sleeve for VintCo, this sleeve is engineered to meet or exceed original equipment specifications, ensuring optimal fitment and performance.
Designed for installation by experienced and qualified machinists, this cylinder sleeve features precisely set port angles to minimize port-matching work. It is ready to be bored and honed to accommodate the stock-size VintCo piston kit, making it a straightforward component for engine rebuilds.
Key Features:
- Direct replacement cylinder sleeve for vintage Maico 490 motorcycles (1981-1982).
- Manufactured in the USA by Advanced Sleeve for VintCo.
- Ensures OEM-equivalent or superior fitment and performance.
- Port angles are optimized to reduce machining time.
- Can be machined to fit the specific VintCo piston kit.
- Ideal for rebuilds where original cylinders are scarce.
Specifications:
- Bore Size: 86.5mm
- Height: 156.8mm
- Outside Diameter: 94.5mm
- Flange Outside Diameter: 100.2mm
- Flange Height: 10mm
- Wall Thickness: 4.8mm
- Intake Port Size: 33.2mm
- Exhaust Port Location: 45.9mm
- Material: Cast Iron
- Manufacturer: VintCo
- Compatible Piston Part Number: PSM04-00