VintCo cylinder sleeve SLM04B is a cast-iron replacement sleeve for 1983-1984 Maico 490 models. Manufactured in the USA for vintage applications, it is intended to restore worn or damaged cylinders and is supplied with installation dimensions for use by an experienced and qualified machinist. The sleeve is produced with modern manufacturing methods for OEM-equivalent fitment and performance, features correctly angled ports to reduce port-matching work, and can be bored and honed to suit the stock-size VintCo piston kit.

Features

• Replacement cylinder sleeve for vintage Maico 490 engines
• Fits 1983-1984 Maico 490 models
• Intended for restoring worn or damaged original cylinders
• Correctly angled ports reduce required port-matching work
• Can be bored and honed to suit the stock-size VintCo piston kit
• Installation dimensions provided for machinist fitting

Specifications

• VintCo Part Number: SLM04B
• Compatible piston part number: PSM04-00
• Material: Cast iron
• Country of manufacture: USA
• Bore: 86.5 mm
• Height: 156.8 mm
• Outside diameter: 94.5 mm
• Flange outside diameter: 100.2 mm
• Flange height: 5.1 mm
• Wall thickness: 4.8 mm
• Intake: 33.2 mm
• Exhaust port location: 45.8 mm

Vehicle Fitments

• 1983 Maico 490
• 1984 Maico 490