4345M07600 .120 Piston for Suzuki GS1150E 1984-1986 +3mm to 79mm 10.25:1 CR

Piston for Suzuki GS1150E

This Wiseco 4345M07600 .120 piston fits Suzuki GS1150E machines from 1984 through 1986, taking displacement 3mm over to 79mm with a 10.25:1 compression ratio.

Overview

This piston for Suzuki GS1150E models is a forged replacement built for riders rebuilding the top end of an air-cooled inline four. The 79mm bore and 10.25:1 compression ratio restore compression and add displacement for stronger midrange pull.

Built For Performance

• Forged aluminum construction for strength under load
• 79mm bore size increases displacement by 3mm over stock
• 10.25:1 compression ratio for reliable pump-fuel operation
• Precision-machined ring grooves for consistent sealing
• Wiseco 4345M07600 part number for direct identification

Fits These Machines

• for Suzuki GS1150E 1984
• for Suzuki GS1150E 1985
• for Suzuki GS1150E 1986

On-The-Job Use

• Top-end rebuilds on high-mileage GS1150E engines
• Bore-out builds seeking added displacement
• Street machines needing dependable forged pistons
• Restoration projects returning an 1150 to service

Specs At A Glance

Good To Know

Q: Does this piston require machine work to the cylinder? A: Yes, the .120 oversize bore means the cylinder must be bored and honed to 79mm before assembly. A: Have a qualified machinist confirm piston-to-wall clearance before install.

Q: Can I run this compression ratio on regular pump fuel? A: A 10.25:1 ratio on this engine is generally suited to premium pump fuel with correct jetting. A: Check ignition timing and carburetion for your build before hard use.

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