Cylinder Kit (Big Bore) 443cc ‘Assassin’ for Yamaha Banshee

ThisDriveline Performance 443cc big bore Assassin ATV cylinder kit is designed for a 61mm or +7mm stroker crankshaft with 115mm rods.

Driveline Performance 443cc Assassin Big Bore Cylinder Kit Features

• 68mm big bore stock appearing Assassin cylinders, a design from Driveline Performance
• 68mm Nikasil bore, triple exhaust ports, larger intake and transfer ports
• Machined in house for the +7mm (61mm) long rod (115mm) stroker crankshaft
• Machined to specific heights so there are no spacer plates required, a standard.020 inch base gasket is included
• Moderate exhaust port timing for riders who want a broad usable power band suitable for all types of riding
• Cylinders can also be used for drag racing
• Port specs are 193.5 exhaust and 124.0 transfer durations

Driveline Performance 443cc Assassin Big Bore Cylinder Kit Specifications

• Brand: Driveline Performance
• Product type: Big bore cylinder kit
• Model: Assassin
• Displacement: 443cc
• Bore size: 68mm
• Bore plating: Nikasil (Millenium Technologies does the plating)
• Exhaust ports: Triple
• Exhaust duration: 193.5
• Transfer duration: 124.0
• Crankshaft: 61mm or +7mm stroker with 115mm rods
• Base gasket:.020 inch

What's Included

• 2 cylinders Nikasil plated to a 68mm bore size
• 2 Wiseco forged 68mm pistons with custom intake window design
• Rings, wrist pins and circlips
• 2 rubber water jacket plugs
• 1.020 inch base gasket
• 10 stock style head studs

Note: these are 68mm bore cylinders and will not work with a stock head or small bore domes. Peak H.P. and power curves will vary depending on the amount of compression and timing you choose to use along with the quality of reeds and carburettors that are being installed.