LTZ DRZ 400 Z400 94mm Big Bore Cylinder Piston 434cc Top End Rebuild Kit 12.3:1

94mm Big Bore Cylinder Piston Kit 434cc Top End Rebuild Kit

This 94mm big bore cylinder piston kit delivers a 434cc top end rebuild for LTZ, DRZ, and Z400 machines, raising displacement and compression with a 12.3:1 piston setup.

Overview

This 94mm big bore cylinder piston kit is a top end rebuild package that increases displacement to 434cc on compatible LTZ, DRZ, and Z400 models. The kit pairs a 94mm cylinder with a matching piston built for a 12.3:1 compression ratio. Riders and builders use this big bore cylinder piston kit to gain torque and midrange on a quad or dual sport machine.

Built For Performance

• 94mm bore cylinder for increased displacement
• 434cc displacement result after installation
• 12.3:1 compression ratio piston
• Matching piston and cylinder for a direct top end rebuild
• Designed around the DRZ and LTZ 400 family engine platform

Fits These Machines

• for Suzuki LTZ400
• for Suzuki DRZ400
• for Suzuki DR-Z400
• for Kawasaki KFX400

On-The-Job Use

• Big bore builds on quad and dual sport 400 platforms
• Top end rebuilds after cylinder wear or damage
• Trail and dune riding where extra low end torque helps
• Displacement increase projects on compatible 400 engines

Specs At A Glance

Good To Know

Q: Does a 94mm big bore kit require any supporting changes? A: A higher compression big bore build often needs jetting, fuel, and cooling checks to run reliably. Confirm your machine and setup can support a 12.3:1 piston before installing.

Q: Will the cylinder bolt onto my LTZ or DRZ 400 directly? A: This kit is built for the 400 platform family but fit can vary by year and model. Verify your exact machine and engine code before ordering.

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