Wiseco 4744M08300 Forged Piston Kit Bore CR - 83mm 13.5 1 1255cc

The Wiseco 4744M08300 is a high-performance forged piston kit designed for the Suzuki GSX-R1100 and GSX1100F Katana. Displacing 1255cc with an 83mm bore (+5mm oversize over the stock 78mm bore), this kit delivers a high-compression 13.5:1 compression ratio for serious power gains. The stock engine bore and stroke is 78mm x 59mm, and cylinder boring and honing is required for installation of this oversize piston.

Forged from high-silicon, low-expansion aluminum alloy, Wiseco pistons offer superior strength, reduced weight, and improved heat transfer compared to cast alternatives. Each piston is engineered and machined in the USA at Wiseco's facility in Mentor, Ohio, using dedicated forgings that optimize the strength-to-weight ratio for peak performance and durability.

Kit Contents (Single Piston Kit):

• 1 Wiseco Forged Piston
• 1 Piston Ring Set (P/N: 3268XG)
• 1 Wrist Pin (P/N: S520)
• 2 Wrist Pin Circlips (P/N: CW20)

Key Specifications:

• Bore Size: 83mm
• Oversize: +5mm
• Compression Ratio: 13.5:1
• Displacement: 1255cc
• Stock Engine Bore x Stroke: 78mm x 59mm
• Cylinder Preparation Required: Bore & Hone
• Ring Part Number: 3268XG
• Wrist Pin Part Number: S520
• Circlip Part Number: CW20

This is a single piston kit. A complete engine rebuild will require one kit per cylinder. Note that this oversize piston requires professional cylinder boring and honing before installation.