4435M07800 .080 Piston Kit for Suzuki GSX-R1100 1986-1988 +2mm to 78mm 12:1

Piston Kit for Suzuki GSX-R1100

This Wiseco 4435M07800 .080 piston kit fits Suzuki GSX-R1100 machines from 1986 through 1988, taking displacement 2mm over to 78mm and delivering a 12:1 compression ratio.

Overview

This piston kit for Suzuki GSX-R1100 models is a forged performance replacement engineered for riders rebuilding or freshening a high-revving engine. The 78mm bore and 12:1 compression ratio raise output while preserving the durability the GSX-R1100 is known for.

Built For Performance

• Forged aluminum construction for high strength under cylinder pressure
• 78mm bore size increases displacement by 2mm over stock
• 12:1 compression ratio for stronger combustion and response
• Precision-machined ring grooves for consistent sealing
• Wiseco 4435M07800 part number for direct identification

Fits These Machines

• for Suzuki GSX-R1100 1986
• for Suzuki GSX-R1100 1987
• for Suzuki GSX-R1100 1988

On-The-Job Use

• Top-end rebuilds on high-mileage GSX-R1100 engines
• Performance builds seeking added displacement and compression
• Track and street machines needing reliable forged pistons
• Restoration projects returning an 1100 to service

Specs At A Glance

Good To Know

Q: Does this kit require machine work to the cylinder? A: Yes, the .080 oversize bore means the cylinder must be bored and honed to 78mm before assembly. A: Have a qualified machinist confirm piston-to-wall clearance before install.

Q: Is a higher compression ratio safe on pump fuel? A: A 12:1 ratio on this engine typically calls for premium fuel and correct jetting or mapping. A: Verify ignition timing and fuel quality for your build before running hard.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.