Pinasco cast iron 177cc performance cylinder kit for 2-port vintage largeframe Vespa VNB, VBB, GL, Early Sprint/Super/GT scooters. 

Don't screw around with cutting extra ports or custom base gaskets! Bolt this on to your VNB, VBB, GL, Early Sprint/Super/GT and unleash the power! This is the ONLY kit on the market for 2-port largeframe Vespa scooters! 

Great in combination with a 20/20 (20/20 Injected) or 24/24 carb and a sport pipe!

NOTE: This performance cylinder kit was designed to allow the best cooling characteristics possible. In order to do so, the manufacturer has created a specific layout of the cooling fins. On some applications, the cooling fins at the base of the cylinder come in contact with the flywheel. When this occurs, the fins must be ground off to allow clearance. Removing these fins will not hinder the cooling abilities of the cylinder nor will they subject the cylinder to premature failure. A simple grinding bit will work well for removal.

Specifications:

• Material: Cast Iron 
• Bore: 63mm
• Stroke: 57mm
• Displacement: 177cc
• Head: Side-Bore
• Compression: 1.5-1.7mm
• Piston: Stamped Aluminum with Steel Double Rings
• Does not include spark plug, NGK BR8HS available online

Compatibility:

About Pinasco: Pinasco was founded in the 1960s by Vespa enthusiast Andrea Pinasco, who was interested in getting more power and higher performance from Vespa scooters. From high-performance cylinder kits to innovative crankshafts and smartly designed electronic ignitions, Pinasco offers the right upgrade for many classic Vespa models.