Forged piston kit sized at 73.50 mm to increase displacement to approximately 1100 cc when used as a complete set of four. Designed with a 10.25:1 compression ratio, each single-cylinder kit includes piston, ring set, wrist pin and circlips, and requires cylinder boring to suit the oversize.

Features

• Forged aluminium construction for strength under sustained thermal load
• Dedicated ring pack for the 73.50 mm bore size
• Supplied with piston, rings, wrist pin and circlips

Specifications

• Bore size: 73.50 mm
• Oversize: +3.50 mm over standard 70.00 mm
• Compression ratio: 10.25:1
• Engine configuration reference: Air-cooled inline-four
• Stroke: 64.80 mm (reference for displacement calculation)
• Resulting displacement (set of four): approximately 1100 cc
• Installation note: Cylinder boring and correct piston-to-bore clearance required

Vehicle Fitments

• Suzuki GS1000 1978–1981